參數(shù)資料
型號: UPD784021
廠商: NEC Corp.
英文描述: 16/8-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 16/8-BIT單片機(jī)
文件頁數(shù): 7/90頁
文件大?。?/td> 614K
代理商: UPD784021
7
m
PD784020, 784021
2. MAIN DIFFERENCES BETWEEN
m
PD784026 AND
m
PD78234 SUB-SERIES
Series
m
PD784026 sub-series
m
PD78234 sub-series
Item
Number of basic instructions
(mnemonics)
113
65
Minimum instruction execution
time
160 ns
(at 25 MHz)
333 ns
(at 12 MHz)
Memory space (program/data)
1M byte in total
64K bytes/1M byte
Timer/counter
16-bit timer/counter
1
8/16-bit timer/counter
2
8/16-bit timer
1
16-bit timer/counter
1
8-bit timer/counter
2
8-bit timer
1
Clock output function
Available
Unavailable
Watchdog timer
Available
Unavailable
Serial interface
UART/IOE (3-wire serial I/O)
2 channels
CSI (3-wire serial I/O, SBI)
1 channel
UART
1 channel
CSI (3-wire serial I/O, SBI)
1 channel
Interrupt
Context switching
Available
Unavailable
Priority
4 levels
2 levels
Standby function
3 modes
(HALT, STOP, IDLE)
2 modes (HALT, STOP)
Operation clock switching
Selectable from f
XX
/2, f
XX
/4, f
XX
/8, or f
XX
/16
Fixed to f
XX
/2
Pin
functions
MODE pin
Unavailable
To specify ROM-less mode
(always in the high level for the
m
PD78233
or
m
PD78237)
TEST pin
Pin for testing the device
Low level during ordinary use
Unavailable
Package
80-pin plastic QFP (14
14 mm)
80-pin plastic TQFP (fine pitch)
(12
12 mm): for the
m
PD784021 only
80-pin ceramic WQFN (14
14 mm):
for the
m
PD78P4026 only
80-pin plastic QFP (14
14 mm)
94-pin plastic QFP (20
20 mm)
84-pin plastic QFJ (1150
1150 mil)
94-pin ceramic WQFN (20
20 mm):
for the
m
PD78P238 only
相關(guān)PDF資料
PDF描述
UPD784031GC-3B9 16/8-BIT SINGLE-CHIP MICROCONTROLLER
UPD784031GC-8BT 16/8-BIT SINGLE-CHIP MICROCONTROLLER
UPD784031GK-BE9 16/8-BIT SINGLE-CHIP MICROCONTROLLER
UPD784031GCA-3B9 16/8-BIT SINGLE-CHIP MICROCONTROLLER
UPD784031 16/8-BIT SINGLE-CHIP MICROCONTROLLER
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