 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Features * Fast Read Access Time - 120 ns * Word-wide or Byte-wide Configurable * Dual Voltage Range Operation * * * - Unregulated Battery Power Supply Range, 2.7V to 3.6V or Standard 5V 10% Supply Range 4-Megabit Flash and Mask ROM Compatable Low Power CMOS Operation - 20 A Maximum Standby - 10 mA Max. Active at 5 MHz for VCC = 3.6V JEDEC Standard Packages - 44-Lead PLCC - 44-Lead SOIC (SOP) - 48-Lead TSOP (12 mm x 20 mm) High Reliability CMOS Technology - 2,000 ESD Protection - 200 mA Latchup Immunity RapidTM Programming Algorithm - 50 s/word (typical) CMOS and TTL Compatible Inputs and Outputs - JEDEC Standard for LVTTL and LVBO Integrated Product Identification Code Commercial and Industrial Temperature Ranges * * * * * Description The AT27BV400 is a high performance low-power, low-voltage 4,194,304-bit one time programmable read only memory (OTP EPROM) organized as either 256K by 16 or 512K by 8 bits. It requires only one supply in the range of 2.7 to 3.6V in normal read (continued) PLCC Pin Configurations Pin Name A0 - A17 O0 - O15 O15/A-1 BYTE/VPP CE OE NC Function Addresses Outputs Output/Address Byte Mode/ Program Supply Chip Enable Output Enable No Connect A4 A3 A2 A1 A0 CE GND OE O0 O8 O1 7 8 9 10 11 12 13 14 15 16 17 6 5 4 3 2 1 44 43 42 41 40 A5 A6 A7 A17 NC GND NC A8 A9 A10 A11 39 38 37 36 35 34 33 32 31 30 29 A12 A13 A14 A15 A16 BYTE/VPP GND O15/A-1 07 O14 O6 4-Megabit (256K x 16 or 512K x 8) Unregulated Battery-VoltageTM High Speed OTP EPROM AT27BV400 Preliminary TSOP Type 1 A15 A14 A13 A12 A11 A10 A9 A8 NC NC NC NC NC NC NC NC A17 A7 A6 A5 A4 A3 A2 A1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 A16 BYTE/VPP GND 015/A-1 O7 O14 O6 O13 O5 O12 O4 VCC O11 O3 O10 O2 O9 O1 O8 O0 OE GND CE A0 AT27BV400 Preliminary SOIC (SOP) NC NC A17 A7 A6 A5 A4 A3 A2 A1 A0 CE GND OE O0 O8 O1 O9 O2 O10 O3 O11 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 NC NC A8 A9 A10 A11 A12 A13 A14 A15 A16 BYTE/VPP GND 015/A-1 O7 O14 O6 O13 O5 O12 O4 VCC O9 O2 O10 O3 O11 NC VCC O4 O12 O5 O13 18 19 20 21 22 23 24 25 26 27 28 Rev. 0989A-03/98 1 mode operation. The by-16 organization makes this part ideal for portable and hand held 16- and 32-bit microprocessor systems using either regulated or unregulated battery power. Atmel's innovative design techniques provide fast speeds that rival 5V parts while keeping the low power consumption of a 3V supply. At V CC = 2.7V, any word can be accessed in less than 120ns. With a typical power dissipation of only 10 mW at 5mHZ and VCC = 3V, the AT27BV400 consumes less than one fifth the power of a standard 5V EPROM. Standby mode supply current is typically less than 1 mA at 3V. The AT27BV400 simplifies system design and stretches battery lifetime even further by eliminating the need for power supply regulation. The AT27BV400 can be organized as either word-wide or byte-wide. The organization is selected via the BYTE/VPP pin. When BYTE/VPP is asserted high (VIH), the word-wide organization is selected and the O15/A-1 pin is used for O15 data output. When BYTE/VPP is asserted low (V IL),the byte wide organization is selected and the O15/A-1 pin is used for the address pin A-1. When the AT27BV400 is logically regarded as x16 (word-wide), but read in the bytewide mode, then with A-1= VIL the lower 8 bits of the 16-bit word are selected with A-1 = VIH the upper 8 bits of the 16bit word are selected. The AT27BV400 is available in industry standard JEDECapproved one-time programmable (OTP) PLCC, SOIC (SOP), and TSOP packages. The device features two-line control(CE,OE) to eliminate bus contention. With high density 256K word or 512K byte storage capability, the AT27BV400 allows firmware to be to be stored reliably and to be accessed by the system without the delays of mass storage media. The AT27BV400 operating with VCC at 3.0V produces TTL level outputs that are compatible with standard TTL logic devices operating at VCC = 5V. At V CC = 2.7V, the part is compatible with JEDEC approved low voltage battery operation (LVBO) interface specifications. The device is also capable of standard 5-volt operation making it ideally suited for dual supply range systems or card products that are pluggable in both 3-volt and 5-volt hosts. Atmel's AT27BV400 has additional features that ensure high quality and efficient production use. The RapidTM Programming Algorithm reduces the time required to program the part and guarantees reliable programming. Programming time is typically only 50s/word. The Integrated Product Identification Code electronically identifies the device and manufacturer. This feature is used by industry standard programming equipment to select the proper programming equipment and voltages. The AT27BV400 programs exactly the same way as a standard 5V AT27C400 and uses the same programming equipment. System Considerations Switching between active and standby conditions via the Chip Enable pin may produce transient voltage excursions. Unless accommodated by the system design, these transients may exceed data sheet limits, resulting in device non-conformance. At a minimum, a 0.1 F high frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This capacitor should be connected between the V CC and Ground terminals of the device, as close to the device as possible. Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a 4.7 F bulk electrolytic capacitor should be utilized, again connected between the VCC and Ground terminals. This capacitor should be positioned as close as possible to the point where the power supply is connected to the array. Block Diagram 2 AT27BV400 AT27BV400 Absolute Maximum Ratings* Temperature Under Bias ................................ -55C to +125C Storage Temperature ..................................... -65C to +150C Voltage on Any Pin with with Respect to Ground ..................................-2.0V to +7.0V(1) Voltage on A9 with Respect to Ground ......................................-2.0V to +14.0V(1) Note: VPP Supply Voltage with Respect to Ground .......................................-2.0V to +14.0V(1) 1. *NOTICE: Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Minimum voltage is -0.6V DC which undershoot to -2.0V for pulses of less than 20 ns. Maximum output pin voltage is Vcc + 0.75V DC which may overshoot to + 7.0V for pulses of less than 20 ns. Operating Modes Outputs Mode/Pin Read Word-wide Read Byte-wide Upper Read Byte-wide Lower Output Disable Standby Rapid Program PGM Verify PGM Inhibit Product Identification(5) Notes: 1. X can be VIL or VIH. 2. Read, output disable, and standby modes require, 2.7V VCC 3.6V, or 4.5V VCC 5.5V. 3. Refer to the programming characteristics tables in this data sheet. 4. VH = 12.0 0.5V. 5. Two identifier words may be selected. All Ai inputs are held low (VIL) except A9,which is set to VH , and A0, which is toggled low (VIL) to select the Manufacturer's Identification word and high (VIH) to select the Device Code word. 6. Standby VCC current (ISB) is specified with VPP = VCC . VCC > VPP will cause a slight increase in ISB. (3) CE VIL VIL VIL X(1) VIH VIL X VIH VIL OE VIL VIL VIL VIH X (1) Ai X X (1) (1) BYTE/VPP VIH VIL VIL X X (6) O0-O7 DOUT DOUT DOUT O8-O14 DOUT High Z High Z High Z High Z DIN DOUT High Z O15/A-1 DOUT VIH VIL X(1) X(1) X (1) VIH VIL VIH VIL Ai Ai X(1) A9 = VH A0 = VIH or VIL A1 - A17 = VIL (4) VPP VPP VPP VIH Identification Code 3 DC and AC Operating Conditions for Read Operation AT27BV400 -12 Com. Operating Temperature (Case) Ind. VCC Power Supply -40C - 85C 2.7V to 3.6V 5V 10% -40C - 85C 2.7V to 3.6V 5V 10% 0C - 70C -15 0C - 70C DC and Operating Characteristics for Read Operation Symbol Parameter Condition Min Max Units VCC = 2.7V to 3.6V ILI ILO IPP1 ISB ICC VIL (2) Input Load Current Output Leakage Current VPP (1) VIN = 0V to VCC VOUT = 0V to VCC VPP = VCC ISB1 (CMOS), CE = VCC 0.3V ISB2 (TTL), CE = 2.0 to VCC + 0.5V f = 5MHz, IOUT = 0 mA, CE = VIL, VCC = 3.6V VCC = 3.0 to 3.6V VCC = 2.7 to 3.6V -0.6 -0.6 2.0 0.7 x VCC 1 5 10 20 100 10 0.8 0.2 x VCC VCC + 0.5 VCC + 0.5 0.4 0.2 0.1 2.4 VCC - 0.2 VCC - 0.1 A A A A A mA V V V V V V V V V V Read/Standby Current VCC(1) Standby Current VCC Active Current Input Low Voltage VIH Input High Voltage VCC = 3.0 to 3.6V VCC = 2.7 to 3.6V IOL = 2.0 mA VOL Output Low Voltage IOL = 100 A IOL = 20 A IOH = -2.0 mA VOH Output High Voltage IOH = -100 A IOH = -20 A VCC = 4.5V to 5.5V ILI ILO IPP1 ISB ICC VIL VIH VOL VOH (2) Input Load Current Output Leakage Current VPP (1) VIN = 0V to VCC VOUT = 0V to VCC VPP = VCC ISB1 (CMOS), CE = VCC 0.3V ISB2 (TTL), CE = 2.0 to VCC + 0.5V f = 5 MHz, IOUT = 0 mA, CE = VIL -0.6 2.0 I OH = 2.1 mA IOH = -400 A 2.4 1 5 10 100 1 40 0.8 VCC + 0.5 0.4 A A A A mA mA V V V V Read/Standby Current VCC(1) Standby Current VCC Active Current Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage Notes: 1. VCC must be applied simultaneously or before VPP, and removed simultaneously or after VPP. 2. VPP may be connected directly to VCC except during programming. The supply current would then be the sum of ICC and IPP. 4 AT27BV400 AT27BV400 AC Characteristics for Read Operation VCC = 2.7V to 3.6V and 4.5V to 5.5V AT27BV400 -12 Symbol tACC(2) tCE (2) (2)(3) -15 Max 120 120 40 30 Min Max 150 150 50 35 5 120 50 150 60 Units ns ns ns ns ns ns ns Parameter Address to Output Delay CE to Output Delay OE to Output Delay OE or CE High to Output Float, whichever occured first Output Hold from Address CE or OE, whichever occured first BYTE High to Output Valid BYTE Low to Output Transition Condition CE = OE = VIL OE = VIL CE = VIL Min tOE tDF(4)(5) tOH(4) tST tSTD Notes: 5 1. 2,3,4,5. See the AC Waveforms for Read Operation diagram. Byte-Wide Read Mode AC Waveforms Note: BYTE/VPP = VIL Word-Wide Read Mode AC Waveforms Note: BYTE/VPP = VIH 5 BYTE Transition AC Waveforms Notes: 1. 2. 3. 4. 5. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE. OE may be delayed up to tACC - tOE after the address is valid without impact on tACC. This parameter is only sampled and is not 100% tested. Output float is defined as the point when data is no longer driven. Input Test Waveforms and Measurement Levels Output Test Load tR, tF < 20 ns (10% to 90%) Note: CL = 100 pF including jig capacitance. Pin Capaticance f = 1 MHz, T = 25C(1) Typ CIN COUT Note: Max 10 12 Units pF pF Conditions VIN = 0V VOUT = 0V 4 8 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested. 6 AT27BV400 AT27BV400 Programming Waveforms(1) Notes: 1. 2. 3. The Input Timing reference is 0.8V for VIL and 2.0V for VIH. tOE and tDFP are characteristics of the device but must be accommodated by the programmer. When programming the AT27BV400, a 0.1 F capacitor is required across VPP and ground to suppress voltage transients. DC Programming Characteristics TA = 25 5C, VCC = 6.5 0.25V, VPP = 13.0 0.25V Limits Symbol ILI VIL VIH VOL VOH ICC2 IPP2 VID Parameter Input Load Current Input Low Level Input High Level Output Low Voltage Output High Voltage VCC Supply Current (Program and Verify) VPP Supply Current A9 Product Identification Voltage CE = VIL 11.5 IOL = 2.1 mA IOH = -400 A 2.4 50 30 12.5 Test Conditions VIN = VIL, VIH -0.6 2.0 Min Max 10 0.8 VCC + 0.5 0.4 Units A V V V V mA mA V 7 AC Programming Characteristics TA = 25 5C, VCC = 6.5 0.25V, VPP = 13.0 0.25V Limits Symbol tAS tOES tDS tAH tDH tDFP tVPS tVCS tPW tOE tPRT Notes: Parameter Address Setup Time OE Setup Time Data Setup Time Address Hold Time Data Hold Time OE High to Output Float Delay(2) VPP Setup Time VCC Setup Time CE Program Pulse Width Data Valid from OE BYTE /VPP Pulse Rise Time During Programming (3) Test Conditions(1) Min 2 Max Units s s s s s Input Rise and Fall Times: (10% to 90%) 20 ns Input Pulse Levels: 0.45V to 2.4V Input Timing Reference Level: 0.8V to 2.0V Output Timing Reference Level: 0.8V to 2.0V 2 2 0 2 0 2 2 47.5 52.5 150 50 130 ns s s s ns ns 1. Vcc must be applied simultaneously or before VPP and removed simultaneously or after VPP. 2. This parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer driven-- see timing diagram. 3. Program Pulse width tolerance is 50 sec 5%. Atmel's 27BV800 Integrated Product Identification Code(1) Pins A0 Codes Manufacturer Device Type Note: 0 1 O15 O7 0 1 O14 O6 0 1 O13 O5 0 1 O12 O4 1 1 O11 O3 1 0 O10 O2 1 1 O9 O1 1 0 O8 O0 0 0 Hex Data 1E1E F4F4 1. The AT27BV400 has the same Product Identification Code as the AT27C400. Both are programming compatible. 8 AT27BV400 AT27BV400 Rapid Programming Algorithm A 50 s CE pulse width is used to program. The address is set to the first location. VCC is raised to 6.5V and BYTE/VPP is raised to 13.0V. Each address is first programmed with one 50 s CE pulse without verification. Then a verification/reprogramming loop is executed for each address. In the event a word fails to pass verification, up to 10 successive 50 s pulses are applied with a verification after each pulse. If the word fails to verify after 10 pulses have been applied, the part is considered failed. After the word verifies properly, the next address is selected until all have been checked. VPP is then lowered to 5.0V and VCC to 5.0V. All words are read again and compared with the original data to determine if the device passes or fails. 9 Ordering Information tACC (ns) 120 ICC (mA) Active 10 Standby 0.02 Ordering Code AT27BV400-12JC AT27BV400-12RC AT27BV400-12TC AT27BV400-12JI AT27BV400-12RI AT27BV400-12TI AT27BV400-15JC AT27BV400-15RC AT27BV400-15TC AT27BV400-15JI AT27BV400-15RI AT27BV400-15TI Package 44J 44R 48T 44J 44R 48T 44J 44R 48T 44J 44R 48T Operation Range Commercial (0C to 70C) Industrial (-40C to 85C) Commercial (0C to 70C) Industrial (-40C to 85C) 10 0.02 150 10 0.02 10 0.02 Package Type 44J 44R 48T 44-Lead, Plastic J-Leaded Chip Carrier (PLCC) 44-Lead, 0.450" Wide, Plastic Gull Wing Small Outline Package (SOIC/SOP) 48-Lead, Plastic Thin Small Outline Package (TSOP) 12 x 20 mm 10 AT27BV400 AT27BV400 Packaging Information 44R, 44-Lead, 0.450" Wide, Plastic Gull Wing Small Outline Package (SOIC) Dimensions in Inches and (Millimeters) 48T, 48-Lead, 12 x 20 mm, Plastic Thin Small Outline Package(TSOP) Dimensions in Millimeters and (Inches)* *Controlling dimension: millimeters 44J, 44-Lead, Plastic J-Leaded Chip Carrier (PLCC) Dimensions in Inches and (Millimeters) JEDEC STANDARD MS-018 AC .045(1.14) X 45 PIN NO. 1 IDENTIFY .045(1.14) X 30 - 45 .012(.305) .008(.203) .656(16.7) SQ .650(16.5) .032(.813) .026(.660) .695(17.7) SQ .685(17.4) .630(16.0) .590(15.0) .021(.533) .013(.330) .050(1.27) TYP .500(12.7) REF SQ .043(1.09) .020(.508) .120(3.05) .090(2.29) .180(4.57) .165(4.19) .022(.559) X 45 MAX (3X) 11 |
Price & Availability of AT27BV400-15TI
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |