UPD75518 NEC, UPD75518 Datasheet - Page 2

• Manufacturer Part Number: UPD75518
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

2
FUNCTIONS
Built-in memory
General registers
Instruction cycle
I/O ports
A/D converter
Timer/counter
Serial interface
Interrupt
Instruction set
System clock generator
Operating supply voltage
Package
Total
Number of CMOS
input lines
Number of CMOS
I/O lines
Number of N-ch
open-drain I/O lines
Item
ROM
RAM
32640
1024
(4-bit
• 0.67 s/1.33 s/2.67 s/10.7 s (At 6.0 MHz)
• 0.95 s/1.91 s/3.82 s/15.3 s (At 4.19 MHz)
• 122 s (At 32.768 kHz)
64
16 (Shared with INT, SIO, PPO, and analog input. Seven lines can be pulled
28 (Four lines for LED driving)
• 16 lines can be pulled up by software.
• Four lines can be pulled down by the mask option.
20 (Eight lines for LED driving. Withstand voltage is 10 V. 20 lines can be
8-bit resolution
• Capable of low-voltage operation: V
Four channels
Two channels
• Vectored interrupt : Seven sources (External: 3, internal: 4)
• Test input
• Clock test flag is provided.
• Parallel edge detection flag for key scan input is provided.
• Set/reset/test/Boolean operation for bit data
• 4-bit data transfer, arithmetic/logical, increment/decrement, and comparison
• 8-bit data transfer, arithmetic/logical, increment/decrement, and comparison
• Ceramic/crystal oscillator for main system clock : 6.0 MHz, 4.19 MHz
• Crystal oscillator for subsystem clock
V
80-pin plastic QFP (14
DD
instructions
instructions
up by software.)
pulled up by the mask option.)
= 2.7 to 6.0 V
4 bits
8 or 8-bit
8 bits
• Timer/event counter
• Basic interval timer
• Timer/pulse generator (14-bit PWM output enabled)
• Clock timer
• NEC standard serial bus interface (SBI)/
• General clock synchronous serial interface
8 channels (Successive approximation system)
4)
three-wire SIO: One channel
(three-wire SIO): One channel
: Two sources
4 banks
20 mm)
Functions
(External: 1, internal: 1)
DD
= 2.7 to 6.0 V
: 32.768 kHz
PD75518(A)