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PDF D789188CT Data sheet ( Hoja de datos )
| Número de pieza | D789188CT | |
| Descripción | UPD789188CT | |
| Fabricantes | NEC | |
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NEW INFORMATION
MOS INTEGRATED CIRCUIT
µPD78F9189/9188CT
8-BIT SINGLE-CHIP MICROCONTROLLER
The µPD78F9189 is NEW Subseries (small, general-purpose) in the 78K/0S Series.
The µPD78F9189 replaces the internal ROM of the µPD789188 with flash memory.
Because flash memory allows the program to be written and erased electrically with the device mounted on the
board, this product is ideal for the evolution stages of system development, small-scale production and rapid
development of new products.
Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before
designing.
µPD789167, 789177, 789167Y, 789177Y Subseries User’s Manual: U14186E
78K/0S Series User's Manual Instruction: U11047E
FEATURES
• Pin compatible with mask ROM version (except VPP pin)
• Flash memory: 24 Kbytes ,Masked Version:16 Kbytes
• High-speed RAM: 512 bytes
• High-speed (0.4 µs: @5.0-MHz operation with main system clock)
• 8-bit resolution A/D converter: 4 channels
• I/O ports: 22
• Serial interface: 1 channel
• 3-wire serial I/O mode / UART mode: 1 channel
• Timers: 6 channels
• 16-bit timer: 1 channel
• 8-bit timer/event counter: 2 channels
• 8-bit timer: 1 channel
• Watch timer: 1 channel
• Watchdog timer: 1 channel
• On-chip 16-bit multiplier
• Power supply voltage: VDD = 4.5 to 5.5 V
Document No. (1st edition)valid in only China
Date Published Feb. 2003 NS CP(K)
Printed in China
NEC Electronics 2003
1 page  
µPD78F9189/9188CT
3. PIN FUNCTIONS
3.1 Port Pins
Pin Name
P00 to P04
P10, P11
P20
P21
P22
P23
P24
P25
P26
P30
P31
P32
P33
P50 to P53
P60 to P63
I/O
I/O
I/O
I/O
I/O
I/O
Input
Function
After Reset Alternate Function
Port 0
5-bit input/output port
Input/output mode can be specified in 1-bit units
When used as an input port, an on-chip pull-up resistor can be
specified by software.
Port 1
2-bit input/output port
Input/output mode can be specified in 1-bit units
When used as an input port, an on-chip pull-up resistor can be
specified by software.
Input
Input
−
−
Port 2
7-bit input/output port
Input/output mode can be specified in 1-bit units
For P20 to P22, P25, and P26, an on-chip pull-up resistor can be
specified by software.
Only P23 and P24 can be used as N-ch open-drain
input/output port pins.
Input
SCK20/ASCK20
SO20/TxD20
SI20/RxD20
SI20/RxD20
TO80
Port 3
4-bit input/output port
Input/output mode can be specified in 1-bit units
On-chip pull-up resistor can be specified by software.
Input
INTP0/TI81/CPT90
INTP1/TO81
INTP2/TO90
INTP3/TO82/BZO90
Port 5
4-bit N-ch open-drain input/output port
Input/output mode can be specified in 1-bit units
Port 6
4-bit input port
Input
−
Input
ANI0 to ANI3
Data Sheet (1st edition)valid in only China
5
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