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SN54LS373-SP中文资料PDF规格书
SN54LS373-SP规格书详情
Choice of Eight Latches or Eight D-Type
Flip-Flops in a Single Package
3-State Bus-Driving Outputs
Full Parallel Access for Loading
Buffered Control Inputs
Clock-Enable Input Has Hysteresis to
Improve Noise Rejection (’S373 and ’S374)
P-N-P Inputs Reduce DC Loading on Data
Lines (’S373 and ’S374)
description
These 8-bit registers feature 3-state outputs
designed specifically for driving highly capacitive
or relatively low-impedance loads. The
high-impedance 3-state and increased
high-logic-level drive provide these registers with
the capability of being connected directly to and
driving the bus lines in a bus-organized system
without need for interface or pullup components.
These devices are particularly attractive for
implementing buffer registers, I/O ports,
bidirectional bus drivers, and working registers.
The eight latches of the ’LS373 and ’S373 are
transparent D-type latches, meaning that while
the enable (C or CLK) input is high, the Q outputs
follow the data (D) inputs. When C or CLK is taken
low, the output is latched at the level of the data
that was set up.
The eight flip-flops of the ’LS374 and ’S374 are
edge-triggered D-type flip-flops. On the positive
transition of the clock, the Q outputs are set to the
logic states that were set up at the D inputs.
Schmitt-trigger buffered inputs at the enable/clock lines of the ’S373 and ’S374 devices simplify system design
as ac and dc noise rejection is improved by typically 400 mV due to the input hysteresis. A buffered
output-control (OC) input can be used to place the eight outputs in either a normal logic state (high or low logic
levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines
significantly.
OC does not affect the internal operation of the latches or flip-flops. That is, the old data can be retained or new
data can be entered, even while the outputs are off.
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
23+ |
DIP |
5000 |
原装正品,假一罚十 |
询价 | ||
TI |
23+ |
金封圆帽 |
18000 |
询价 | |||
TI |
1436+ |
DIP20 |
30000 |
绝对原装进口现货可开增值税发票 |
询价 | ||
TI |
23+ |
SOP20-7.2 |
1200 |
绝对全新原装!优势供货渠道!特价!请放心订购! |
询价 | ||
TI德州仪器 |
22+ |
24000 |
原装正品现货,实单可谈,量大价优 |
询价 | |||
2020+ |
500 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
询价 | ||||
TI |
2017+ |
CDIP |
24589 |
深圳代理原装现货进口库存(香港-日本-台湾)开17点增票 |
询价 | ||
AN |
2016+ |
DIP |
6528 |
只做原厂原装现货!终端客户个别型号可以免费送样品! |
询价 | ||
TI |
2021+ |
CDIP20 |
4600 |
进口原装正品 |
询价 | ||
TI |
18+ |
DIP20 |
85600 |
保证进口原装可开17%增值税发票 |
询价 |