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參數(shù)資料
| 型號： | UPD4704C |
| 廠商： | NEC Corp. |
| 元件分類： | 通用總線功能 |
| 英文描述： | EXTENSION 8-BIT UP/DOWN COUNTER CMOS INTEGRATED CIRCUITS |
| 中文描述： | 延展8位加/減計數(shù)器CMOS集成電路 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 191K |
| 代理商： | UPD4704C |
2
μ
PD4704
BLOCK DIAGRAM
Pin Name
Input/Output
Up
Down
Input
D
0 to 7
Output
(3-state)
Carry
Output
Borrow
Output
RESET
Input
(Schmitt)
OE
Input
STB
Input
V
DD
GND
Function
Up-count & down-count signal input pins
Count is performed on rise of signal.
Count data output pins. Activated when OE is “L”, high impedance outputs when OE
is “H”.
8-bit counter carry signal output pin (active-low)
8-bit counter borrow signal output pin (active-low)
8-bit counter reset signal output pin
Counter is reset when this pin is “H”.
Count data output control signal input pin
Counter data output latch signal. Data is latched on the fall of STB, and is held while
STB = “L”.
Power supply input pin
Ground pin
PIN FUNCTIONS
Reset
A
B
Phase
Discrimination
Edge Detection
8-Bit Up/Down Counter
8-Bit Latch
3-State Output
Carry
Borrow
STB
OE
CD
0–7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD4704G | EXTENSION 8-BIT UP/DOWN COUNTER CMOS INTEGRATED CIRCUITS |
| UPD4712D | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| UPD4712DCY | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| UPD4712DGT | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| UPD4713A | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| uPD4704C(A) | 制造商:Renesas Electronics 功能描述:Cut Tape |
| UPD4711AGS | 制造商:Panasonic Industrial Company 功能描述:IC |
| UPD4711BGS | 制造商:Panasonic Industrial Company 功能描述:IC |
| UPD4712ACY | 制造商:Panasonic Industrial Company 功能描述:IC SUBBING WITH UPD4712CCY |
| UPD4712CCY | 制造商:Panasonic Industrial Company 功能描述:IC |
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