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PDF PI74FCT162H373T Data sheet ( Hoja de datos )
| Número de pieza | PI74FCT162H373T | |
| Descripción | Fast CMOS 16-Bit Transparent Latches | |
| Fabricantes | Pericom Semiconductor Corporation | |
| Logotipo |  |
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PI74FCT16P37I37/146F23C73T/11662H373733TT
PI74FCT162373T12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345617869-0B12I12T345T67R89A01N23S45P67A89R012E34N56T789L01A21T23C45H678E90S12
PI74FCT162H373T
1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
Fast CMOS 16-Bit
Transparent Latches
Product Features:
Common Features:
• PI74FCT16373T,PI74FCT162373T,andPI74FCT162H373Tare
high-speed,
low power devices with high current drive.
• Vcc=5V±10%
• Hysteresis on all inputs
• Packages available:
– 48-pin 240 mil wide plastic TSSOP (A)
– 48-pin 300 mil wide plastic SSOP (V)
PI74FCT16373T Features:
• High output drive: IOH = –32 mA; IOL = 64 mA
• Power off disable outputs permit "live insertion"
• Typical VOLP (Output Ground Bounce) < 1.0V
at VCC = 5V, TA = 25°C
PI74FCT162373T Features:
• Balanced output drivers: ±24 mA
• Reduced system switching noise
• Typical VOLP (Output Ground Bounce) < 0.6V
at VCC = 5V, TA = 25°C
PI74FCT162H373T Features:
• Bus Hold retains last active bus state during 3-state
• Eliminates the need for external pull-up resistors
Product Description:
Pericom Semiconductor’s PI74FCT series of logic circuits are pro-
duced in the Company’s advanced 0.6 micron CMOS technology,
achieving industry leading speed grades.
The PI74FCT16373T, PI74FCT162373T, and PI74FCT162H373T
are 16-bit transparent latches designed with 3-state outputs and are
intended for bus oriented applications. The Output Enable and
Latch Enable controls are organized to operate as two 8-bit latches
or one 16-bit latch. When Latch Enable (LE) is HIGH, the flip-flops
appear transparent to the data. The data that meets the set-up time
when LE is LOW is latched. When OE is HIGH, the bus output is
in the high impedance state.
The PI74FCT16373T output buffers are designed with a Power-
Off disable allowing “live insertion” of boards when used as
backplane drivers.
The PI74FCT162373T has ±24 mA balanced output drivers. It is
designed with current limiting resistors at its outputs to control the
output edge rate resulting in lower ground bounce and undershoot.
This eliminates the need for external terminating resistors for most
interface applications.
The PI74FCT162H373T has “Bus Hold” which retains the input’s
last state whenever the input goes to high-impedance preventing
“floating” inputs and eliminating the need for pull-up/down resistors.
Logic Block Diagram
1OE
1LE
1D0
D
C
2OE
2LE
2D0
1O0
D
C
2O0
TO 7 OTHER CHANNELS
TO 7 OTHER CHANNELS
1 PS2033A 03/11/96
1 page  
PI74FCT16373/162373/162H373T
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Power Supply Characteristics
Parameters Description
ICC Quiescent Power
Supply Current
∆ICC Supply Current per
Input @ TTL HIGH
ICCD Supply Current per
Input per MHz(4)
IC Total Power Supply
Current(6)
Test Conditions(1)
VCC = Max.
VIN = GND or VCC
Min. Typ(2) Max. Units
0.1 500 µA
VCC = Max.
VIN = 3.4V(3)
0.5 1.5 mA
VCC = Max.,
Outputs Open
XOE = GND, XLE = VCC
One Bit Toggling
50% Duty Cycle
VCC = Max.,
Outputs Open
fI = 10 MHZ
50% Duty Cycle
XOE = GND, XLE = VCC
One Bit Toggling
VCC = Max.,
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
XOE = GND, XLE = VCC
16 Bits Toggling
VIN = VCC
VIN = GND
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
60 100 µA/
MHz
0.6 1.5(5) mA
0.9 2.3(5)
2.4 4.5(5)
6.4 16.5(5)
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5.0V, +25°C 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 (fCP/2 + fINI)
ICC = Quiescent Current
∆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)
fI = Input Frequency
NI = Number of Inputs at fI
All currents are in milliamps and all frequencies are in megahertz.
5 PS2033A 03/11/96
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet PI74FCT162H373T.PDF ] | |
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