M34570M4 Datasheet, PDF (1/68 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
4570 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
DESCRIPTION
The 4570 Group is a 4-bit single-chip microcomputer designed
with CMOS technology. Its CPU is that of the 4500 series using
a simple, high-speed instruction set. The computer is equipped
with a carrier wave output circuit for remote control, an 8-bit timer
with a reload register, a 10-bit timer with a reload register, and
an 8-bit timer with two reload registers.
The various microcomputers in the 4570 Group include variations
of the built-in memory size. The mask ROM version and One
Time PROM version of 4570 Group are produced as shown in
the table below.
FEATURES
q Minimum instruction execution time
When f(XIN) is selected for system clock ....................... 1.5µs
(f(XIN)=2.0 MHz, VDD=4.5 V to 5.5 V)
When f(XIN)/4 is selected for system clock ................. 2.86µs
(f(XIN)=4.2 MHz, VDD=2.0 V to 5.5 V)
q Supply voltage
............................. 2.5 V to 5.5 V (One Time PROM version)
....................................... 2.0 V to 5.5 V (Mask ROM version)
q System clock switch function
............................................................. f(XIN)/4 or not divided
q Timers
Timer 1... 10-bit timer with a reload register and carrier wave
output auto-control function
Timer 2 ................................ 8-bit timer with a reload register
Timer 3... 8-bit timer with two reload registers and carrier wave
generation function
q Interrupt ................................................................... 4 sources
q Power-on reset circuit
q Watchdog timer ............................................................ 16 bits
q Key-on wakeup function (Ports P0, P1, and P4, ON/OFF of
port P4 can be switched)
qPull-up transistor .............. (Ports P0, P1, and P4, ON/OFF of
port P4 can be switched)
q Voltage drop detection circuit
q Clock generating circuit (ceramic resonance)
APPLICATION
Remote control transmitter
Product
M34570M4-XXXFP
M34570M8-XXXFP
M34570MD-XXXFP
M34570E8FP
M34570EDFP *
*: Under development (Jan. 1999)
ROM (PROM) size
(! 10 bits)
4096 words
8192 words
16384 words
8192 words
16384 words
RAM size
(! 4 bits)
128 words
128 words
128 words
128 words
128 words
Package
36P2R-A
36P2R-A
36P2R-A
36P2R-A
36P2R-A
ROM type
Mask ROM
Mask ROM
Mask ROM
One Time PROM
One Time PROM
PIN CONFIGURATION (TOP VIEW)
M34570Mx-XXXFP
D2
1
D3
2
D4
3
D5
4
D6
5
D7
6
D8
7
D9/TOUT
8
P20
9
P21/INT
10
RESET
11
CNVSS
12
XOUT
13
XIN
14
VSS
15
VDCE
16
VDD
17
CARR
18
Outline 36P2R-A
36
D1
35
D0
34
P13
33
P12
32
P11
31
P10
30
P03
29
P02
28
P01
27
P00
26
P43
25
P42
24
P41
23
P40
22
P33
21
P32
20
P31
19
P30