參數資料
型號： μPD78P048A
廠商： NEC Corp.
英文描述： 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述： 8位單片機微控制器（8位單片微控制器）
文件頁數： 5/72頁
文件大小： 387K
代理商： ΜPD78P048A
m
PD78P048A
5
FUNCTION DESCRIPTION
Item
Function
PROM
60 K bytes
Note 1
High-speed RAM
1024 bytes
Note 1
Expansion RAM
1024 bytes
Note 2
Buffer RAM
64 bytes
FIP display RAM
48 bytes
General-purpose register
8 bits
￥
32 registers (8 bits
￥
8 registers
￥
4 banks)
Minimum instruction execution time
Instruction execution time variable function is built in.
When main system clock is selected
0.4
m
s/0.8
m
s/1.6
m
s/3.2
m
s/6.4
m
s (when operating at 5.0 MHz)
When subsystem clock is selected
122
m
s (when operating at 32.768 kHz)
Instruction set
Multiplication/division (8 bits
￥
8 bits, 16 bits ÷ 8 bits)
Bit manipulation (set, reset, test, boolean operation)
I/O ports
(including FIP dual-function pin)
Total
CMOS input
CMOS input/output
N-ch open-drain input/output
P-ch open-drain input/output
P-ch open-drain output
: 68
: 2
: 27
: 5
: 16
: 18
FIP controller/driver
Display output total
No. of segments
No. of digits
: 34
: 9 to 24
: 2 to 16
A/D converter
8-bit resolution
￥
8 ch
Supply voltage: AV
DD
= 4.0 to 6.0 V
Serial interface
3-wire serial I/O/SBI/2-wire serial I/O mode selectable
3-wire serial I/O mode (on-chip max. 64 bytes automatic data transmit/receive function):
: 1 ch
1 ch
Timer
16-bit timer/event counter: 1 channel
8-bit timer/event counter : 2 channels
Clock timer
Watchdog timer
6-bit up/down counter
: 1 channel
: 1 channel
: 1 channel
Timer output
3 (14-bit PWM output capability : 1)
Clock output
19.5 kHz, 39.1 kHz, 78.1 kHz, 156 kHz, 313 kHz, 625 kHz
(When operating at main system clock 5.0 MHz)
32.768 kHz (when operating at subsystem clock 32.768 kHz)
Buzzer output
1.2 kHz, 2.4 kHz, 4.9 kHz (when operating at main system clock 5.0 MHz)
Vectored
interrupt
sources
Maskable
Internal: 10, External: 4
Non-maskable
Internal: 1
Software
1
Test input
Internal: 1
Supply voltage
V
DD
= 2.7 to 6.0 V
Package
80-pin plastic QFP (14
￥
20 mm)
80-pin ceramic WQFN
Notes 1.
Internal PROM/internal high-speed RAM capacity can be changed by memory size switching register (IMS).
2.
Internal expansion RAM capacity can be changed by internal expansion RAM size switching register (IXS).
Internal
memory
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