IDT54FCT162701ATPVB 查看數據表（PDF） - Integrated Device Technology
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IDT54FCT162701ATPVB Datasheet PDF : 9 Pages
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IDT54/74FCT162701T/AT
FAST CMOS 18-BIT R/W BUFFER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN DESCRIPTION
Pin Names
I/O
A1-18
I/O
B1-18
I/O
CLK
I
WCE
I
RCE
I
FF
O
RESET
I
OEAB
I
OEBA
I
LE
I
Description
18 bit I/O port.
18 bit I/O port.
Clock for write path FIFO. Clocks data into FIFO when WCE is low, clocks data out of FIFO when RCE is
low. When FIFO is full all further writes to the FIFO are inhibited. When FIFO is empty all reads from the
FIFO are inhibited. CLK also resets the FIFO when RESET is low.
Enable pin for FIFO input clock.
Enable pin for FIFO output clock.
Write path FIFO full flag. Goes low when FIFO is full.
Synchronous FIFO reset - when low CLK resets the FIFO. The FIFO pointers are initialized to the
"empty" condition and FIFO output is forced high (all ones). The FIFO full flag (FF) will be high
immediately after reset.
Output Enable pin for B port.
Output Enable pin for A port.
Read path latch enable pin. When high, data flows transparently from B port to A port, B data is latched
on the falling edge of LE.
2915 tbl 01
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Description
VTERM(2) Terminal Voltage with Respect to
GND
VTERM(3) Terminal Voltage with Respect to
GND
TSTG Storage Temperature
Max.
–0.5 to +7.0
–0.5 to
VCC +0.5
–65 to +150
Unit
V
V
°C
IOUT
DC Output Current
–60 to +120 mA
NOTES:
2915 lnk 02
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-
INGS 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 FCT162XXXT Output and I/O terminals.
3. Output and I/O terminals for FCT162XXXT.
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol Parameter(1) Conditions Typ. Max. Unit
CIN
Input
VIN = 0V
3.5 6.0 pF
Capacitance
CI/O
I/O
VOUT = 0V 3.5 8.0 pF
Capacitance
NOTE:
2915 lnk 03
1. This parameter is measured at characterization but not tested.
5.15
3
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