HEF40161B中文资料PDF规格书
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HEF40161B规格书详情
DESCRIPTION
The HEF40161B is a fully synchronous edge-triggered 4-bit binary counter with a clock input (CP), an overriding asynchronous master reset (MR), four parallel data inputs (P0 to P3), three synchronous mode control inputs (parallel enable (PE), count enable parallel (CEP) and count enable trickle (CET)), buffered outputs from all four bit positions (O0 to O3) and a terminal count output (TC).
Operation is fully synchronous (except for the MR input) and occurs on the LOW to HIGH transition of CP. When PE is LOW, the next LOW to HIGH transition of CP loads data into the counter from P0 to P3 regardless of the levels of CEP and CET inputs.
When PE is HIGH, the next LOW to HIGH transition of CP advances the counter to its next state only if both CEP and CET are HIGH; otherwise, no change occurs in the state of the counter. TC is HIGH when the state of the counter is 15 (O1 to O3 = HIGH) and when CET is HIGH. A LOW on MR sets all outputs (O0 to O3 and TC) LOW, independent of the state of all other inputs. Multistage synchronous counting is possible without additional components by using a carry look-ahead counting technique; in this case, TC is used to enable successive cascaded stages. CEP, CET and PE must be stable only during the set-up time before the LOW to HIGH transition of CP.
产品属性
- 型号:
HEF40161B
- 制造商:
PHILIPS
- 制造商全称:
NXP Semiconductors
- 功能描述:
4-bit synchronous binary counter with asynchronous reset
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
RCA |
84+ |
DIP |
159 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
PHI |
23+ |
DIP |
1050 |
特价库存 |
询价 | ||
PHILIPS |
23+ |
SO-16 |
7000 |
绝对全新原装!100%保质量特价!请放心订购! |
询价 | ||
PHI |
2015+ |
DIP16 |
19889 |
一级代理原装现货,特价热卖! |
询价 | ||
PHILIPS |
2023+ |
SOP |
80000 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
询价 | ||
PHILIPS |
22+ |
SOP |
8000 |
原装正品支持实单 |
询价 | ||
PHILIPS |
23+ |
SOP16 |
4500 |
全新原装、诚信经营、公司现货销售 |
询价 | ||
PHILIPS |
23+ |
SO-16 |
12300 |
询价 | |||
PHI |
93+ |
SOP |
39 |
询价 | |||
PHILIPS |
22+ |
SOP-16 |
4650 |
询价 |