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UPD4704C Datasheet

  • UPD4704C

  • EXTENSION 8-BIT UP/DOWN COUNTER CMOS INTEGRATED CIRCUITS

  • 192.63KB

  • 16頁(yè)

  • NEC   NEC

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DATA SHEET
MOS INTEGRATED CIRCUIT
碌
PD4704
EXTENSION 8-BIT UP/DOWN COUNTER
CMOS INTEGRATED CIRCUITS
DESCRIPTION
The
碌
PD4704 is 8-bit up/down counters for extension of the
碌
PD4702 incremental encoder counter. They perform
an up/down-count using an 8-bit width with a
碌
PD4702 carry or borrow signal as input. In addition, a carry output
and borrow output are also provided for further extension of the count width, enabling extension to be performed
in 8-bit units.
FEATURES
鈥?/div>
8-bit up/down counter for extension of
碌
PD4702
鈥?/div>
Count data output controllable (latch and 3-state output)
鈥?/div>
Extension carry and borrow outputs
鈥?/div>
CMOS, single +5 V power supply
PIN NAMES
Up
Down
Reset
STB
OE
CD
0-7
Carry
: Up-count input
: Down-count input
: Counter reset input
: Latch strobe signal input
: Output control signal input
: Count data outputs
: Carry pulse output
PIN CONFIGURATION (Top View)
Reset
A
B
NC
CD
0
CD
1
CD
2
CD
3
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
DD
Carry
Borrow
STB
OE
CD
7
CD
6
CD
5
CD
4
NC
Borrow : Borrow pulse output
ORDERING INFORMATION
Part Number
Package
20-pin plastic DIP
20-pin plastic SOP
(300 mil)
(300 mil)
NC
V
SS
碌
PD4704C
碌
PD4704G
Document No. IC-3305A (2nd edition)
(O. D. No. IC-8762B)
Date Published April 1997 P
Printed in Japan
漏
1993

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