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7477 Datasheet(PDF) 183 Page - Renesas Technology Corp

Part # 7477
Description  8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES
PDF  361 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7477 Datasheet(HTML) 183 Page - Renesas Technology Corp

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7470/7471/7477/7478 GROUP USER’S MANUAL
1-176
HARDWARE
1.19 Built-in PROM version
1.19.1 EPROM mode
The built-in PROM version has the EPROM mode in addition to the same operation modes as those of
the mask ROM version. The EPROM mode permits writing to the built-in PROM and reading from the built-
in PROM. To the built-in PROM, writing, reading and erasing can be performed by the same operations
as those of the M5M27C256K.
Table 1.19.2 shows a pin function in EPROM mode and Figure 1.19.1 to 1.19.6 show a connections in
EPROM mode.
Table 1.19.2 Pin functions in EPROM mode
Built-in PROM version
VCC
P33
VSS
P11 to P17, P20 to P23,
P30, P31, P40, P41
P00 to P07
VREF
P32
M5M27C256K
VCC
VPP
VSS
A0 to A14
D0 to D7
CE
OE
Pin name
Fig. 1.19.1 Pin connection in EPROM mode of 7470 group
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
P07
P06
P05
P04
P03
P02
P01
P00
P41
P40
P33/CNTR1
P32/CNTR0
P31/INT1
P30/INT0
VCC
P16/CLK
P15/SOUT
P14/SIN
P13/T1
P12/T0
P11
P10
P23/IN3
P22/IN2
P21/IN1
P20/IN0
VREF
XIN
XOUT
VSS
P17/SRDY
RESET
Outline 32P4B
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
VSS
CE
D7
D6
D5
D4
D3
D2
D1
D0
A14
A13
VPP
A12
A11
VCC
OE
VSS
: Same functions as M5M27C256K
(TOP VIEW)



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