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PDF PI74FCT162H374T Data sheet ( Hoja de datos )
| Número de pieza | PI74FCT162H374T | |
| Descripción | Fast CMOS 16-Bit Registers | |
| Fabricantes | Pericom Semiconductor Corporation | |
| Logotipo |  |
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PI74FCT16P37I47/146F23C74T/11662H373744TT
PI74FCT162374T12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901211623-4B56I7T890R12E34G567I8S90T12E34R56S789(031-2S12T34A567T89E01)2
PI74FCT162H374T
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Fast CMOS 16-Bit
Registers (3-State)
Product Features:
Common Features:
• PI74FCT16374T,PI74FCT162374T,andPI74FCT162H374T
are 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)
PI74FCT16374T 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
PI74FCT162374T Features:
• Balanced output drivers: ±24 mA
• Reduced system switching noise
• Typical VOLP (Output Ground Bounce) < 0.6V
at VCC = 5V, TA = 25°C
PI74FCT162H374T Features:
• Bus Hold retains last active bus state during 3-state
• Eliminates the need for external pull-up resistors
Logic Block Diagram
Product Description:
Pericom Semiconductor’s PI74FCT series of logic circuits are
produced in the Company’s advanced 0.6 micron CMOS technology,
achieving industry leading speed grades.
The PI74FCT16374T, PI74FCT162374T, and PI74FCT162H374T
are 16-bit octal registers designed with 16 D-type flip-flops with a
buffered common clock and 3-state outputs. The Output Enable
(xOE) and clock (xCLK) controls are organized to operate as
two 8-bit registers or one 16-bit register. When OE is HIGH, the
outputs are in the high impedance state. Input data meeting the
setup and hold time requirements of the D inputs is transferred to
the O outputs on the LOW-to-HIGH transition of the clock input.
The PI74FCT16374T output buffers are designed with a Power-Off
disable allowing “live insertion” of boards when used as backplane
drivers.
The PI74FCT162374T 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 PI74FCT162H374T 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.
1OE
1CLK
1D0
D
C
2OE
2CLK
2D0
1O0
D
C
2O0
TO 7 OTHER CHANNELS
TO 7 OTHER CHANNELS
1 PS2034A 03/28/01
1 page  
PI74FCT16374/162374/162H374T
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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
One Bit Toggling
50% Duty Cycle
VCC = Max.,
Outputs Open
fCP = 10 MHZ
50% Duty Cycle
XOE = GND
fI = 5 MHZ
50% Duty Cycle
One Bit Toggling
VCC = Max.,
Outputs Open
fCP = 10 MHZ
50% Duty Cycle
XOE = GND
16 Bits Toggling
fI = 2.5 MHZ
50% Duty Cycle
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
1.1 3.0(5)
3.0 5.5(5)
7.5 19.0(5)
Notes:
1. For Max. or Min. conditions, 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 PS2034A 03/28/01
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet PI74FCT162H374T.PDF ] | |
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