CY54FCT827T, CY74FCT827T
10-BIT BUFFERS
WITH 3-STATE OUTPUTS
SCCS034A – SEPTEMBER 1994 – REVISED OCTOBER 2001
CY74FCT827T . . . Q OR SO PACKAGE
(TOP VIEW)
Function, Pinout, and Drive Compatible
With FCT, F, and AM29827 Logic
Reduced V
of Equivalent FCT Functions
(Typically = 3.3 V) Versions
OE
D
D
D
D
D
D
D
D
D
D
V
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
1
24
23
22
21
20
19
18
17
16
15
14
OH
1
0
1
2
3
4
5
6
7
8
9
CC
0
2
Edge-Rate Control Circuitry for
Significantly Improved Noise
Characteristics
3
1
4
2
5
3
6
4
I
Supports Partial-Power-Down Mode
off
7
Operation
5
8
6
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
9
7
10
11
8
9
– 1000-V Charged-Device Model (C101)
GND 12
13 OE
2
3-State Outputs
Matched Rise and Fall Times
CY74FCT827T . . . L PACKAGE
(TOP VIEW)
Fully Compatible With TTL Input and
Output Logic Levels
CY54FCT827T
– 32-mA Output Sink Current
– 12-mA Output Source Current
4
3
2
1
28 27 26
25
5
D
D
D
Y
Y
Y
2
3
4
2
3
4
CY74FCT827T
– 64-mA Output Sink Current
– 32-mA Output Source Current
6
24
23
22
21
20
19
7
8
NC
NC
9
D
D
D
Y
Y
Y
5
6
7
5
6
7
description
10
11
The ’FCT827T devices are 10-bit bus drivers that
provide high-performance bus-interface buffering
for wide data/address paths or buses carrying
parity. The 10-bit buffers have NANDed output
enables for maximum control flexibility. The
12 13 14 15 16 17 18
NC – No internal connection
’FCT827T
devices
are
designed
for
high-capacitance-load drive capability, while
providing low-capacitance bus loading at both
inputs and outputs. All outputs are designed for
low-capacitance
bus
loading
in
the
high-impedance state.
This device is fully specified for partial-power-down applications using I . The I circuitry disables the outputs,
off
off
preventing damaging current backflow through the device when it is powered down.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 2001, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
unless otherwise noted. On all other products, production
testing of all parameters.
processing does not necessarily include testing of all parameters.
1
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