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參數資料
| 型號： | PD75104 |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| 中文描述： | 4位單片機 |
| 文件頁數： | 1/70頁 |
| 文件大小： | 485K |
| 代理商： | PD75104 |
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DESCRIPTION
μ
PD75108 is a 4-bit single-chip microcomputer integrating timer/event counters, serial interface, and vector
interrupt function, in addition to a CPU, ROM, RAM, and I/O ports, on a single chip. Operating at high speeds,
the microcomputer allows data to be manipulated in units of 1, 4, or 8 bits. In addition, various bit manipulation
instructions are provided to reinforce I/O manipulation capability. Equipped with I/Os for interfacing with
peripheral circuits operating on a different supply voltage, outputs that can directly drive LEDs, and analog
inputs,
μ
PD75108 is suitable for controlling such systems as VTRs, acoustic products, button telephones, radio
communications equipment, and printers. A pin-compatible EPROM model is also available for evaluation of
system development and small-scale production of application systems.
Detailed functions are described in the following user’s manual. Be sure to read it for designing.
μ
PD751XX Series User’s Manual: IEM-922
FEATURES
Internal memory
Program memory (ROM)
: 8068
×
8 bits (
μ
PD75108)
: 6016
×
8 bits (
μ
PD75106)
: 4096
×
8 bits (
μ
PD75104)
Data memory (RAM)
: 512
×
4 bits (
μ
PD75108)
: 320
×
4 bits (
μ
PD75106, 75104)
New architecture “75X series” rivaling 8-bit microcomputers
43 systematically organized instructions
A wealth of bit manipulation instructions
8-bit data transfer, compare, operation, increment, and decrement instructions
1-byte relative branch instructions
GETI instruction executing 2-/3-byte instruction with one byte
High speed. Minimum instruction execution time: 0.95
μ
s (at 4.19 MHz), 5 V
Power-saving, instruction time change function: 0.95
μ
s/1.91
μ
s/15.3
μ
s (at 4.19 MHz)
I/O port pins as many as 58
Three channels of 8-bit timers
8-bit serial interface
Multiplexed vector interrupt function
Model with PROM is available:
μ
PD75P108B (One-time PROM, EPROM)
NEC Corporation 1989
Document No.
(O. D. No.
Date Published
Printed in Japan
IC-2520B
IC-6906B)
January 1994 P
DATA SHEET
MOS INTEGRATED CIRCUIT
μ
PD75104, 75106, 75108
4-BIT SINGLE-CHIP MICROCOMPUTER
The mark
#
shows major revised points.
The information in this document is subject to change without notice.
Unless there are differences among
μ
PD75104, 75106, and 75108 functions,
μ
PD75108 is treated as the
representative model throughout this manual.
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