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參數(shù)資料
| 型號(hào)： | MC14526BDWG |
| 廠商： | ON Semiconductor |
| 文件頁(yè)數(shù)： | 3/10頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC COUNTER BINARY 6BIT 16-SOIC |
| 標(biāo)準(zhǔn)包裝： | 47 |
| 系列： | 4000B |
| 邏輯類型： | 二進(jìn)制計(jì)數(shù)器，十進(jìn)制 |
| 方向： | 下 |
| 元件數(shù)： | 1 |
| 每個(gè)元件的位元數(shù)： | 4 |
| 復(fù)位： | 異步 |
| 計(jì)數(shù)速率： | 6.6MHz |
| 觸發(fā)器類型： | 正，負(fù) |
| 電源電壓： | 3 V ~ 18 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC W |
| 包裝： | 管件 |
MC14526B
http://onsemi.com
2
FUNCTION TABLE
Inputs
Output
Resulting
Function
Clock Reset Inhibit
Preset
Enable
Cascade
Feedback
“0”
X
H
X
L
H
X
L
H
L
H
Asynchronous reset*
Asynchronous reset
X
L
X
H
X
L
Asynchronous preset
L
H
L
X
L
Decrement inhibited
H
L
No change** (inactive edge)
Decrement**
X = Don’t Care
NOTES:
** Output “0” is low when reset goes high only it PE and CF are low.
** Output “0” is high when reset is low, only if CF is high and count is 0000.
PIN DESCRIPTIONS
Preset Enable (Pin 3) — If Reset is low, a high level on the
Preset Enable input asynchronously loads the counter with
the programmed values on P0, P1, P2, and P3.
Inhibit (Pin 4) — A high level on the Inhibit input pre
vents the Clock from decrementing the counter. With Clock
(pin 6) held high, Inhibit may be used as a negative edge clock
input.
Clock (Pin 6) — The counter decrements by one for each
rising edge of Clock. See the Function Table for level
requirements on the other inputs.
Reset (Pin 10) — A high level on Reset asynchronously
forces Q0, Q1, Q2, and Q3 low and, if Cascade Feedback is
high, causes the “0” output to go high.
“0” (Pin 12) — The “0” (Zero) output issues a pulse one
clock period wide when the counter reaches terminal count
(Q0 = Q1 = Q2 = Q3 = low) if Cascade Feedback is high and
Preset Enable is low. When presetting the counter to a value
other than all zeroes, the “0” output is valid after the rising
edge of Preset Enable (when Cascade Feedback is high). See
the Function Table.
Cascade Feedback (Pin 13) — If the Cascade Feedback
input is high, a high level is generated at the “0” output when
the count is all zeroes. If Cascade Feedback is low, the “0”
output depends on the Preset Enable input level. See the
Function Table.
P0, P1, P2, P3 (Pins 5, 11, 14, 2) — These are the preset
data inputs. P0 is the LSB.
Q0, Q1, Q2, Q3 (Pins 7, 9, 15, 1) — These are the
synchronous counter outputs. Q0 is the LSB.
VSS (Pin 8) — The most negative power supply potential.
This pin is usually ground.
VDD (Pin 16) — The most positive power supply potential.
VDD may range from 3.0 to 18 V with respect to VSS.
STATE DIAGRAM
MC14526B
4
3
2
1
0
15
14
13
12
11
10
9
8
7
6
5
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| MC14526BDWR2 | 功能描述:計(jì)數(shù)器移位寄存器 3-18V Presettable RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
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| MC14526BF | 功能描述:計(jì)數(shù)器 IC 3-18V Presettable RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
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| MC14526BFR1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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