參數(shù)資料
型號： UPD7554A
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)： 4/64頁
文件大?。?/td> 991K
代理商： UPD7554A
4
μ
PD7554A, 7554A(A)
CONTENTS
1. PIN FUNCTIONS ........................................................................................................................................... 6
1.1
PORT FUNCTIONS ................................................................................................................................................. 6
1.2
OTHER THAN PORTS ............................................................................................................................................ 6
1.3
PIN MASK OPTION ................................................................................................................................................ 7
1.4
CAUTION ON USE OF P00/INT0 PIN AND RESET PIN ..................................................................................... 8
1.5
PIN INPUT/OUTPUT CIRCUITS ............................................................................................................................ 9
1.6
RECOMMENDED CONNECTION OF UNUSED
μ
PD7554A PINS .................................................................... 12
1.7
OPERATION OF INPUT/OUTPUT PORTS.......................................................................................................... 13
2. INTERNAL BLOCK FUNCTIONS............................................................................................................... 15
2.1
PROGRAM COUNTER (PC): 10 BITS.................................................................................................................. 15
2.2
STACK POINTER (SP): 6 BITS ............................................................................................................................ 16
2.3
PROGRAM MEMORY (ROM): 1024 WORDS
×
8 BITS ..................................................................................... 17
2.4
GENERAL REGISTER ........................................................................................................................................... 17
2.5
DATA MEMORY (RAM): 64
×
4 BITS ................................................................................................................. 18
2.6
ACCUMULATOR (A): 4 BITS ............................................................................................................................... 19
2.7
ARITHMETIC LOGIC UNIT (ALU): 4 BITS .......................................................................................................... 19
2.8
PROGRAM STATUS WORD (PSW): 4 BITS ...................................................................................................... 19
2.9
SYSTEM CLOCK GENERATOR ........................................................................................................................... 20
2.10 CLOCK CONTROL CIRCUIT ................................................................................................................................. 21
2.11 TIMER/EVENT COUNTER ................................................................................................................................... 22
2.12 SERIAL INTERFACE ............................................................................................................................................. 23
2.13 TEST CONTROL CIRCUIT .................................................................................................................................... 25
3. STANDBY FUNCTIONS.............................................................................................................................. 27
3.1
STOP MODE.......................................................................................................................................................... 27
3.2
HALT MODE.......................................................................................................................................................... 27
3.3
CANCELLING THE STANDBY MODE................................................................................................................. 28
4. RESET FUNCTIONS.................................................................................................................................... 29
4.1
DETAILS OF INITIALIZATION ............................................................................................................................. 29
5.
μ
PD7554A INSTRUCTION SET............................................................................................................... 30
6.
ELECTRICAL SPECIFICATIONS .............................................................................................................. 35
7.
CHARACTERISTICS CURVES .................................................................................................................. 47
8.
μ
PD7554A APPLIED CIRCUITS............................................................................................................... 51
9.
PACKAGE INFORMATION ....................................................................................................................... 52
10. RECOMMENDED PACKAGING PATTERN OF PLASTIC SOP (REFERENCE) ..................................... 56
11. RECOMMENDED SOLDERING CONDITIONS....................................................................................... 57
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD7554AG-597-E2 制造商:Renesas Electronics Corporation 功能描述:
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UPD7554AG-603-E2-A 制造商:Renesas Electronics Corporation 功能描述:
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