W78C54 반도체 회로 부품 판매점
8-BIT MICROCONTROLLER
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 Winbond |
W78C54
8-BIT MICROCONTROLLER
GENERAL DESCRIPTION
The W78C54 is a derivative of the W78C52 microcontroller family that provides extended internal
ROM. The chip has 16K bytes of mask ROM and 256 bytes of RAM.
This device provides an enhanced architecture that makes it more powerful and suitable for a variety
of applications for general control systems. It provides on-chip 16KB mask ROM to accommodate
large program codes, 256-bytes of non-volatile on-chip RAM, four 8-bit I/O ports, one 4-bit I/O port,
three 16-bit timer/counters, eight sources with two-level interrupt structures, and on-chip oscillator
clock circuits.
FEATURES
• DC to 40 MHz extensive operating frequency
• 256-byte on-chip scratch pad RAM
• 16K-byte on-chip mask ROM
• 64K-byte address space for external Program Memory
• 64K-byte address space for external Data Memory
• Three 16-bit timer/counters
• Four 8-bit bit-addressable I/O ports
• One extra 4-bit bit-addressable I/O port, additional INT2/ INT3
(Available on 44-pin PLCC/QFP package)
• Eight-source, two priority-level interrupts
• Low EMI emission mode
• Built-in programmable power-saving modes - Idle mode & Power-down mode
• Packages:
− DIP 40: W78C54-16/24/40
− PLCC 44: W78C54P-16/24/40
− QFP 44: W78C54F-16/24/40
− TQFP 44: W78C54M-16/24/40
Publication Release Date: December 1997
- 1 - Revision A2
PIN CONFIGURATIONS
W78C54
40-Pin DIP (W78C54)
T2, P1.0
T2EX, P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RST
RXD, P3.0
TXD, P3.1
INT0, P3.2
INT1, P3.3
T0, P3.4
T1, P3.5
WR, P3.6
RD, P3.7
XTAL2
XTAL1
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40 VCC
39 P0.0, AD0
38 P0.1, AD1
37 P0.2, AD2
36 P0.3, AD3
35 P0.4, AD4
34 P0.5, AD5
33 P0.6, AD6
32 P0.7, AD7
31 EA
30 ALE
29 PSEN
28 P2.7, A15
27 P2.6, A14
26 P2.5, A13
25 P2.4, A12
24 P2.3, A11
23 P2.2, A10
22 P2.1, A9
21 P2.0, A8
44-Pin PLCC (W78C54P)
P1.5
P1.6
P1.7
RST
RXD, P3.
INT2, P4.3
TXD, P3.1
INT0, P3.2
INT1, P3.3
T0, P3.4
T1, P3.5
/
TI
2 N AAAA
ET T
DD D D
X2 3
01 2 3
,, ,
,, , ,
P P P PP P
PP P P
1 1 1 11 4V 0 0 0 0
. . . . . .C. . . .
4 3 2 10 2C 0 1 2 3
6 5 4 3 2 1 44 43 42 41 40
7 39
8 38
9 37
10 36
11 35
12 34
13 33
14 32
15 31
16 30
17 29
18 19 20 21 22 23 24 25 26 27 28
PP X X VP PP P P P
33 TTS4 22 2 2 2
. . AAS. . . . . .
67 LL
0 01 2 3 4
, , 21
,, , , ,
/ / AA A A A
WR
89 1 1 1
RD
012
P0.4, AD4
P0.5, AD5
P0.6, AD6
P0.7, AD7
EA
P4.1
ALE
PSEN
P2.7, A15
P2.6, A14
P2.5, A13
44-Pin QFP/TQFP (W78C54F/W78C54M)
/
TI
2 N AAAA
ET T
DD D D
X2 3
01 2 3
,, ,
,, , ,
P P P PP P
PP P P
1 1 1 11 4V 00 0 0
. . . . . . C. . . .
4 3 2 10 2C 01 2 3
P1.5
P1.6
P1.7
RST
RXD, P3.0
INT2, P4.3
TXD, P3.1
INT0, P3.2
INT1, P3.3
T0, P3.4
T1, P3.5
44 43 42 41 40 39 38 37 36 35 34
1 33
2 32
3 31
4 30
5 29
6 28
7 27
8 26
9 25
10 24
11 23
12 13 14 15 16 17 18 19 20 21 22
P0.4, AD4
P0.5, AD5
P0.6, AD6
P0.7, AD7
EA
P4.1
ALE
PSEN
P2.7, A15
P2.6, A14
P2.5, A13
P P X X V PPP P P P
3 3 TT S422 2 2 2
. . AAS. . . . . .
67 LL
001 2 3 4
, , 21
,,, , ,
/ / AAA A A
WR
891 1 1
RD
0 12
-2-
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W78C54 controller
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
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전력반도체 문의 : 010-3582-2743
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