参数资料
型号: SN54AHC374W
厂商: TEXAS INSTRUMENTS INC
元件分类: 总线收发器
英文描述: AHC SERIES, 8-BIT DRIVER, TRUE OUTPUT, CDFP20
封装: CERAMIC, FP-20
文件页数: 1/8页
文件大小: 112K
代理商: SN54AHC374W
SN54AHC374, SN74AHC374
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCLS240G – OCTOBER 1995 – REVISED JANUARY 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D EPIC (Enhanced-Performance Implanted
CMOS) Process
D Operating Range 2-V to 5.5-V VCC
D 3-State Outputs Drive Bus Lines Directly
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), Thin Very Small-Outline (DGV), Thin
Shrink Small-Outline (PW), and Ceramic
Flat (W) Packages, Ceramic Chip Carriers
(FK), and Standard Plastic (N) and Ceramic
(J) DIPs
description
The ’AHC374 devices are octal edge-triggered
D-type flip-flops that feature 3-state outputs
designed specifically for driving highly capacitive
or relatively low-impedance loads. These devices
are particularly suitable for implementing buffer
registers, I/O ports, bidirectional bus drivers, and
working registers.
On the positive transition of the clock (CLK) input,
the Q outputs are set to the logic levels of the data
(D) inputs.
A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high
or low) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines
significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without
interface or pullup components.
OE does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while
the outputs are in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54AHC374 is characterized for operation over the full military temperature range of –55
°C to 125°C. The
SN74AHC374 is characterized for operation from –40
°C to 85°C.
Copyright
2000, Texas Instruments Incorporated
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
testing of all parameters.
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.
EPIC is a trademark of Texas Instruments Incorporated.
SN54AHC374 ...J OR W PACKAGE
SN74AHC374 . . . DB, DGV, DW, N, OR PW PACKAGE
(TOP VIEW)
SN54AHC374 . . . FK PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
VCC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
CLK
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
2D
2Q
3Q
3D
4D
1D
1Q
OE
5Q
5D
8Q
4Q
GND
CLK
V
CC
8D
7D
7Q
6Q
6D
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
相关PDF资料
PDF描述
SN54AHC374FK AHC SERIES, 8-BIT DRIVER, TRUE OUTPUT, CQCC20
SN54AHC540FKR AHC SERIES, 8-BIT DRIVER, INVERTED OUTPUT, CQCC20
SN54AHC540J AHC SERIES, 8-BIT DRIVER, INVERTED OUTPUT, CDIP20
SN54AHC541FKR AHC SERIES, 8-BIT DRIVER, TRUE OUTPUT, CQCC20
SN54AHC574WR AHC SERIES, 8-BIT DRIVER, TRUE OUTPUT, CDFP20
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SN54AHC540W 制造商:TI 制造商全称:Texas Instruments 功能描述:OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS