M37544 Datasheet, PDF (1/68 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

7544 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
REJ03B0012-0104Z
Rev.1.04
2004.06.08
DESCRIPTION
The 7544 Group is the 8-bit microcomputer based on the 740 fam-
ily core technology.
The 7544 Group has a serial I/O, 8-bit timers, a 16-bit timer, and
an A/D converter, and is useful for control of home electric appli-
ances and office automation equipment.
FEATURES
• Basic machine-language instructions ...................................... 71
• The minimum instruction execution time ......................... 0.25 µs
(at 8 MHz oscillation frequency, double-speed mode for the
shortest instruction)
• Memory size ROM ......................................................... 8 K bytes
RAM ........................................................ 256 bytes
• Programmable I/O ports ........................................................... 25
• Interrupts ................................................. 12 sources, 12 vectors
• Timers ............................................................................. 8-bit ✕ 2
...................................................................................... 16-bit ✕ 1
• Serial I/O ...................... 8-bit ✕ 1 (UART or Clock-synchronized)
• A/D converter ................................................. 8-bit ✕ 6 channels
• Clock generating circuit ............................................. Built-in type
(low-power dissipation by an on-chip oscillator enabled)
(connect to external ceramic resonator or quartz-crystal oscilla-
tor permitting RC oscillation)
• Watchdog timer ............................................................ 16-bit ✕ 1
• Power source voltage
XIN oscillation frequency at ceramic/quartz-crystal oscillation, in
double-speed mode
At 8 MHz .................................................................... 4.5 to 5.5 V
XIN oscillation frequency at ceramic/quartz-crystal oscillation, in
high-speed mode
At 8 MHz .................................................................... 4.0 to 5.5 V
XIN oscillation frequency at RC oscillation
At 4 MHz .................................................................... 4.0 to 5.5 V
• Power dissipation ........................................... 22.5mW(standard)
• Operating temperature range ................................... –20 to 85 °C
APPLICATION
Office automation equipment, factory automation equipment,
home electric appliances, consumer electronics, etc.
PIN CONFIGURATION (TOP VIEW)
P12/SCLK
1
P13/SRDY
2
P14/CNTR0
3
P20/AN0
4
P21/AN1
5
P22/AN2
6
P23/AN3
7
P24/AN4
8
P25/AN5
9
VREF
10
RESET
11
CNVSS
12
VCC
13
XIN
14
XOUT
15
VSS
16
32
P11/TXD
31
P10/RXD
30
P07(LED7)
29
P06(LED6)
28
P05(LED5)
27
P04(LED4)
26
P03(LED3)/TXOUT
25
P02(LED2)
24
P01(LED1)
23
P00(LED0)/CNTR1
22
P37(LED13)/INT0
21
P34(LED12)/INT1
20
P33(LED11)
19
P32(LED10)
18
P31(LED9)
17
P30(LED8)
Fig. 1 Pin configuration (32P4B type)
Package type : 32P4B
Rev.1.04 2004.06.08 page 1 of 66
REJ03B0012-0104Z