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參數(shù)資料
| 型號： | UPD75108AGC |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| 中文描述： | 4位單片機 |
| 文件頁數(shù)： | 3/66頁 |
| 文件大?。?/td> | 460K |
| 代理商： | UPD75108AGC |
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μ
PD75104A, 75108A
3
Item
Specifications
Number of Basic Instructions
43
Minimum Instruction
Execution Time
Changeable in three steps: 0.95
μ
s, 1.91
μ
s, and 15.3
μ
s at 4.19 MHz
ROM
8064
×
8 bits (
μ
PD75108A), 4096
×
8 bits (
μ
PD75104A)
RAM
512
×
4 bits (
μ
PD75108A), 320
×
4 bits (
μ
PD75104A)
General-Purpose Register
(4 bits
×
8
) ×
4 banks or (8 bis x 4 ) x 4 banks
Three accumulators selectable according to the bit length of manipulated data:
1-bit accumulator (CY), 4-bit accumulator (A), and 8-bit accumulator (XA)
58 port pins
CMOS input pins (Pull-up resistor can be conneced to 4 out of 10 pins
in bit units.): 10
CMOS I/O pins (can directly drive LEDs. Pull-up resistors can be connected to
24 out of 32 pins in bit units.): 32
Medium voltage N-ch open-drain I/O pins: 12
(can directly drive LEDs. Pull-up resistors can be connected in bit units.)
Comparator input pins (4-bit accuracy): 4
I/O Port
8-bit timer/event counter
×
2
8-bit basic interval timer (can be used as watchdog timer)
Timer/Counter
8 bits
LSB first/MSB first mode selectable
Two transfer modes (transfer/reception and reception only modes)
Serial Interface
Vector Interrupt
External: 3, Internal: 4
Test Input
External: 2
Standby
STOP and HALT modes
Various bit manipulation instructions (set, reset, test, Boolean operation)
8-bit data transfer, compare, operation, increment, and decrement
1-byte relative branch instructions
GETI instruction constituting 2 or 3-byte instruction with 1 byte
Instruction Set
Power-ON reset circuit (mask option)
Bit manipulation memory (bit sequential buffer: 16 bits)
Others
Package
64-pin plastic QFP ( 14 mm)
FUNCTIONAL OUTLINE
Internal Memory
Accumulator
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