HMS87C1808B Datasheet, PDF (85/99 Pages) List of Unclassifed Manufacturers – 8-BIT SINGLE-CHIP MICROCONTROLLERS

HMS87C1X04B/08B/16B
Pin No.
User Mode
EPROM MODE
14XXB 15XXB 16XXB 17XXB 18XXB Pin Name
Pin Name
Description
1
1
1
1
39
RA4 (AN4)
A_D4
A12
A4
D4
2
2
2
2
40
RA5 (AN5)
3
3
3
3
41
RA6 (AN6)
A_D5
A_D6
Address Input
A13
A5
D5
Data Input/Output _A14
A6
D6
4
4
4
4
42
RA7 (AN7)
A_D7
A15
A7
D7
5
5
5
5
43
V_DD
V_DD
Connect to V_DD (5.0V)
6
6
6
6
44 RB0 (AVref/AN0)
CTL0
7
7
7
7
1
RB1 (BUZ)
CTL1
Read/Write Control
Address/Data Control
8
8
8
8
2
RB2 (INT0)
CTL2
19
25
33
35
31
X_IN
EPROM Enable High Active, Latch Address in falling edge
20
26
34
36
32
X_OUT
NC
No connection
21
27
35
37
33
RESET
V_PP
Programming Power (0V, 11.5V)
22
28
36
38
34
V_SS
V_SS
Connect to V_SS (0V)
25
29
37
39
35
RA0 (EC0)
A_D0
A8
A0
D0
26
30
38
40
36
RA1 (AN1)
27
31
39
41
37
RA2 (AN2)
A_D1
A_D2
Address Input
A9
A1
D1
Data Input/Output _A10
A2
D2
28
32
40
42
38
RA3 (AN3)
A_D3
A11
A3
D3
Other Pins
-
V_DD
Connect to V_DD (5.0V)
Table 22-2 Pin Description in EPROM Mode
SEP. 2004 Ver 1.03
81