UPD75237GJ-XXX-5BG 查看數據表（PDF） - NEC => Renesas Technology
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UPD75237GJ-XXX-5BG Datasheet PDF : 191 Pages
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µPD75237
LIST OF µPD75237 FUNCTIONS
Item
Built-in memory capacity
I/O line
( ) except FIP
dedicated pins
Instruction cycle
Fluorescent display
tube (FIP)
controller/driver
Timer/counter
Serial interface
Interrupt
System clock oscillator
Mask option
Operating temperature
range
Operating voltage
Package
Function
ROM: 24448 × 8 bits, RAM: 1024 × 4bits
64 lines
q Input pin
: 16
q Input/output pin : 24
q Output pin
: 24
q 0.67 µs/1.33 µs/2.67 µs/10.7 µs (when operated at 6.0 MHz)
q 0.95 µs/1.91 µs/3.82 µs/15.3 µs (when operated at 4.19 MHz)
q 122 µs (when operated at 32.768 kHz)
q Number of segments : 9 to 24
q Number of digits
: 9 to 16
q Dimmer function
: 8 levels
q Pull-down resistor mask option
q Key scan interrupt generation enabled
5 channels
q Basic interval timer : Watchdog timer applicable
q Timer/event counter
q Watch timer
: Buzzer output enabled
q Timer/pulse generator : 14-bit PWM output enabled
q Event counter
q SBI/3-wire type
2 channels q 3-wire type
q Multi-interrupt enabled by hardware
q Both-edge detection
q External interrupt: 3 interrupts q Detected edge programmable (with noise
remove function)
q Detected edge programmable
q External test input: 1 input
q Rising edge detection
q Timer/pulse generator
q Timer/event counter
q Internal interrupt: 5 interrupts q Basic interval timer
q Serial interface #0
q Key scan interrupt
q Internal test input: 2 inputs
q Clock timer
q Serial interface #1
q Main system clock : 6.0 MHz, 4.19 MHz
q Subsystem clock : 32.768 kHz standard
q High withstand voltage port : Pull-down resistor or open-drain output
q Ports 4 and 5
: Pull-up resistors
q Port 7
: Pull-down resistor
–40 to +85 °C
2.7 to 6.0 V (standby data hold: 2.0 to 6.0 V)
94-pin plastic QFP (20 × 20 mm)
2
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