HMS81C2232/48 HMS81C2332/48
HMS81C2232/48, HMS81C2332/48
CMOS Single-Chip 8-Bit Microcontroller
with VFD Controller & VFD Driver
1. OVERVIEW
1.1 Description
The HMS81C2232/48 is advanced CMOS 8-bit micro-controller with 32/48K bytes of ROM(EPROM). This is a powerful micro-controller
which provides a highly flexible and cost effective solution to many VFD applications. This provides the following standard features : 32K/
48K bytes of ROM(EPROM), 1K bytes of RAM, 8-bit timer/counter, 8-bit A/D converter, 6-bit Watch dog Timer, Programmable Buzzer
Driving Port, Serial Peripheral Interface, 8-bit remote control timer, on-chip oscillator and clock circuitry. It also comes with high voltage
I/O pins that can directly drive a VFD(Vacuum Fluorescent Display). In addition, the HMS8XC2232/48 support power saving modes to
reduce power consumption.
Device Name
HMS81C2232
HMS81C2248
HMS81C2332
HMS81C2348
ROM Size
32K bytes
48K bytes
32K bytes
48K bytes
RAM Size
Display RAM
OTP
Package
HMS87C2232
HMS87C2248
HMS87C2332
HMS87C2348
80TQFP
80MQFP
896 bytes
112bytes
64SDIP,64LQFP
64MQFP
896 bytes
112bytes
1.2 HMS81C2232/48 Features
• 32K/48K bytes ROM(EPROM)
• 12 Interrupt Sources
- Two External Sources (INT0, INT1)
• 896 Bytes of On-Chip Data RAM
(Including STACK Area)
- Two Timer/Counter Sources (Timer0, Timer1)
- Three Remote Timer Sources(FE,RE,OVF)
- Two SPI Sources(SIO1, SIO3)
• 112 Bytes of On-Chip Display RAM
- Three Functional Sources (ADC,WDT,BIT)
• Minimum Instruction Execution time:
- 1uS at 4MHz (2cycle NOP Instruction)
• One 8-bit Basic Interval Timer
• One 7-bit Watch Dog Timer
• 7-Channel 8-bit On-Chip Analog to Digital Con-
verter
• Oscillator:
- Crystal
- Ceramic Resonator
• Two 8-bit Timer/Counters
• 10-bit High Speed PWM Output
• Two 8-bit Serial Peripheral Interface
• Two External Interrupt Ports
• Low Power Dissipation Modes
- STOP Mode
- SLEEP Mode
• Operating Voltage: 2.7V ~ 5.5V (@8MHz)
4.5V ~ 5.5V (@10MHz)
• One Programmable 6-bit Buzzer Driving Port
• 53 FIP Ports
- 16EA Output only pins
- High-voltage pins Max. 40V
• Operating Frequency: 1MHz ~ 10MHz
• Enhanced EMS Improvement
Power Fail Processor
(Noise Immunity Circuit)
• Operating Temperature
-40°C ~ 85°C
FEB. 2003 Ver 1.00
1