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IDT74FCT162344AT/CT/ET FAST CMOS ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
FAST CMOS ADDRESS/CLOCK DRIVER
FEATURES:
* * * * * * *
IDT74FCT162344AT/CT/ET
DESCRIPTION:
0.5 MICRON CMOS Technology Ideal for address line driving and clock distribution 8 banks with 1:4 fanout and 3-state Typical tSK(o) (Output Skew) < 500ps Balanced Output Drivers (24mA) Reduced system switching noise ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) * VCC = 5V 10% * Low input and output leakage 1A (max.) * Available in SSOP and TSSOP packages
The FCT162344T is a 1:4 address/clock driver built using advanced dual metal CMOS technology. This high-speed, low power device provides the ability to fanout to memory arrays. Eight banks, each with a fanout of 4, and 3-state control provide efficient address distribution. One or more banks may be used for clock distribution. The FCT162344T has balanced output drive with current limiting resistors. This offers low ground bounce, minimal undershoot and controlled output fall times reducing the need for external series terminating resistors. A large number of power and ground pins and TTL output swings also ensure reduced noise levels. All inputs are designed with hysteresis for improved noise margins.
FUNCTIONAL BLOCK DIAGRAM
OE1
1
OE3
29
2
B11 A5
36
34
B51
A1
8 6
B14
30
B54
9
B21 A6
42
41
B61
A2
14 13
B24
37
B64
OE2
28
OE4
56
16
B31 A7
43
48
B71
A3
15 20
B34
44
B74
23
B41 A8
49
55
B81
A4
21 27
B44
51
B84
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
MAY 2002
1
DSC-3069/6
(c) 2002 Integrated Device Technology, Inc.
IDT74FCT162344AT/CT/ET FAST CMOS ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
OE1 B11 B12 GND B13 B14 VCC A1 B21 B22 GND B23 B24 A2 A3 B31 B32 GND B33 B34 A4 VCC B41 B42 GND B43 B44 OE2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 OE4 B81 B82 GND B83 B84 VCC A8 B71 B72 GND B73 B74 A7 A6 B61 B62 GND B63 B64 A5 VCC B51 B52 GND B53 B54 OE3
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) VTERM(3) TSTG IOUT Description Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature DC Output Current Max -0.5 to +7 -0.5 to VCC+0.5 -65 to +150 -60 to +120 Unit V V C mA
NOTES: 1. Stresses greater than 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 above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. All device terminals except FCT162XXX Output and I/O terminals. 3. Output and I/O terminals terminals for FCT162XXX.
CAPACITANCE (TA = +25C, F = 1.0MHz)
Symbol CIN COUT Parameter(1) Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Typ. 3.5 3.5 Max. 6 8 Unit pF pF
NOTE: 1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names OEx Ax Bxx Inputs 3-State Outputs Description 3-State Output Enable Inputs (Active LOW)
FUNCTION TABLE(1)
Inputs OEx L L H
NOTE: 1. H = HIGH Voltage Level X = Don't Care L = LOW Voltage Level Z = High-Impedance
Outputs Ax L H X Bxx L H Z
SSOP/ TSSOP TOP VIEW
2
IDT74FCT162344AT/CT/ET FAST CMOS ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5.0V 10%
Symbol VIH VIL IIH Parameter Input HIGH Level Input LOW Level Input HIGH Current (Input pins)(4) Input HIGH Current (I/O pins)(4) IIL Input LOW Current (Input pins)(4) Input LOW Current (I/O pins)(4) IOZH IOZL VIK IOS VH ICCL ICCH ICCZ High Impedance Output Current (3-State Output pins)(4) Clamp Diode Voltage Short Circuit Current Input Hysteresis Quiescent Power Supply Current VCC = Max. VIN = GND or VCC VCC = Min., IIN = -18mA VCC = Max., VO = GND(3) -- VCC = Max. VO = 2.7V VO = 0.5V VI = GND Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VI = VCC Min. 2 -- -- -- -- -- -- -- -- -80 -- -- Typ.(2) -- -- -- -- -- -- -- -- -0.7 -140 100 5 Max. -- 0.8 1 1 1 1 1 1 -1.2 -250 -- 500 V mA mV A A A Unit V V A
OUTPUT DRIVE CHARACTERISTICS
Symbol IODL IODH VOH VOL Parameter Output LOW Current Output HIGH Current Output HIGH Voltage Output LOW Voltage Test Conditions(1) VCC = 5V, VIN = VIH or VIL, VO = 1.5V(3) VCC = 5V, VIN = VIH or VIL, VO = 1.5V(3) VCC = Min IOH = -24mA VIN = VIH or VIL VCC = Min IOH = 24mA VIN = VIH or VIL Min. 60 -60 2.4 -- Typ.(2) 115 -115 3.3 0.3 Max. 200 -200 -- 0.55 Unit mA mA V V
NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25C ambient. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. This test limit for this parameter is 5A at TA = -55C.
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IDT74FCT162344AT/CT/ET FAST CMOS ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
POWER SUPPLY CHARACTERISTICS
Symbol ICC ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) VCC = Max. VIN = 3.4V(3) VCC = Max. Outputs Open OEx = GND One Input Bit Toggling Four Output Bits Toggling 50% Duty Cycle VCC = Max. Outputs Open fi = 10MHz 50% Duty Cycle OEx = GND One Input Bit Toggling Four Output Bits Toggling VCC = Max. Outputs Open fi = 2.5MHz 50% Duty Cycle OEx = GND Eight Input Bits Toggling Thirty-Two Output Bits Toggling VIN = VCC VIN = GND Test Conditions(1) Min. -- -- Typ.(2) 0.5 170 Max. 1.5 220 Unit mA A/ MHz
IC
Total Power Supply Current(6)
VIN = VCC VIN = GND VIN = 3.4V VIN = GND
--
1.7
2.7
mA
--
2
3.5
VIN = VCC VIN = GND VIN = 3.4V VIN = GND
--
3.4
4.9(5)
--
5.4
10.9(5)
NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25C ambient. 3. Per TTL driven input (VIN = 3.4V). All other inputs at VCC or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fCPNCP/2 + fiNi) ICC = Quiescent Current (ICCL, ICCH and ICCZ) ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current caused by an Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) NCP = Number of Clock Inputs at fCP fi = Input Frequency Ni = Number of Inputs at fi
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tSK1(o) tSK2(o) Parameter Propagation Delay AX to BXX Output Enable Time OEX to BX Output Disable Time OEX to BX Skew between outputs of same bank and same package (same transition)(3) Skew between outputs of all banks of same package (A1 thru A8 tied together)(3) Condition(1) CL = 50pF RL = 500 FCT1622344AT Min.(2) Max. 1.5 4.8 1.5 1.5 -- -- 6.2 5.6 0.5 0.5 FCT162344CT Min.(2) Max. 1.5 4.3 1.5 1.5 -- -- 5.8 5.2 0.35 0.5 FCT162344ET Min.(2) Max. 1.5 3.8 1.5 1.5 -- -- 5 4.6 0.25 0.5 Unit ns ns ns ns ns
NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. This parameter is guaranteed but not production tested.
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IDT74FCT162344AT/CT/ET FAST CMOS ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
V CC 500 7.0V
SWITCH POSITION
Test Open Drain Disable Low Enable Low All Other Tests Switch Closed Open
VIN Pulse Generator RT D.U.T .
VOU
T
50pF CL
500
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
Test Circuits for All Outputs
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC. 3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V
tSU
tH
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE
1.5V
tREM
1.5V
tSU
tH
Pulse Width
Set-up, Hold, and Release Times
ENABLE SAME PHASE INPUT TRANSITION tPLH OUTPU T OPPOSITE PHASE INPUT TRANSITION tPHL 3V 1.5V 0V VOH 1.5V VO
L
DISABLE 3V 1.5V 0V 3.5V 0.3V tPHZ 0.3V 1.5V 0V 0V VO
L
CONTROL INPUT tPZ OUTPUT NORMALLY LOW OUTPUT NORMALLY HIGH
L
tPL 3.5V 1.5V
Z
tPLH
tPHL
3V 1.5V 0V
SWITCH CLOSED tPZH SWITCH OPEN
VOH
Propagation Delay
3V 1.5V 0V VOH 1.5V VO VOH 1.5V VO
L L
Enable and Disable Times
INPUT
tPLH1
tPHL1
OUTPUT 1 tSK1(o
)
tSK1(o
)
NOTES: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns.
OUTPUT 2 tPHL2 tSKn(o) = |tPLH2 - tPLH1| or |tPHL2 tPLH1| tPLH2
Output Skew - tSKn(o)
NOTES: 1. For tSK1(o) OUTPUT1 and OUTPUT2 are in the same bank. 2. For tSK2(o) OUTPUT1 and OUTPUT2 are in different banks on the same part.
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IDT74FCT162344AT/CT/ET FAST CMOS ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT XX FCT Temp. Range XXX Family XXXX Device Type XX Package
PV PA
Shrink Small Outline Package Thin Shrink Small Outline Package
344AT 344CT 344ET
Address/Clock Driver
162
Double-Density, 5 Volt, Balanced Drive
74
- 40C to +85C
DATA SHEET DOCUMENT HISTORY 1/21/2002 Removed Military temp grade 5/21/2002 Removed TVSOP package
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