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| HMS87C1304A Datasheet, PDF (65/70 Pages) Hynix Semiconductor – CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER | |||
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HYUNDAI MicroElectronics
HMS87C1304A/HMS87C1302A
A_D4
1
28
A_D3
A_D5
2
27
A_D2
A_D6
3
26
A_D1
A_D7
4
25
A_D0
VDD
5
24
CTL0
6
23
CTL1
7
22
VSS
CTL2
8
21
VPP
9
20
NC
10
19
EPROM Enable
11
18
12
17
Pin No.
1
2
3
4
User Mode
Pin Name
RA4 (AN4)
RA5 (AN5)
RA6 (AN6)
RA7 (AN7)
13
16
14
15
ry Figure 20-2 Pin Assignment
limina Pin Name
A_D4
A_D5
eA_D6
PrA_D7
EPROM MODE
Description
A12
Address Input
A13
Data Input/Output
A14
A15
A4
A5
A6
A7
D4
D5
D6
D7
5
VDD
VDD
Connect to VDD (6.0V)
6
RB0 (AVref/AN0)
7
RB1 (INT0)
8
RB2 (INT1)
CTL0
CTL1
CTL2
Read/Write Control
Address/Data Control
9~18
RB3~7, RC3~6, RD2
VDD
Connect to VDD (6.0V)
19
XIN
EPROM Enable High Active, Latch Address in falling edge
20
XOUT
NC
No connection
21
RESET
VPP
Programming Power (0V, 12.75V)
22
VSS
VSS
Connect to VSS (0V)
23, 24 RC0, 1
VDD
Connect to VDD (6.0V)
Table 20-1 Pin Description in EPROM Mode
Jan. 2001
Preliminary
65
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