M34282E2GP MITSUBISHI [Mitsubishi Electric Semiconductor], M34282E2GP Datasheet - Page 60

• Manufacturer Part Number: M34282E2GP
• Description: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

BUILT-IN PROM VERSION
In addition to the mask ROM versions, the 4282 Group has the
One Time PROM versions whose PROMs can only be written to
and not be erased.
The built-in PROM version has functions similar to those of the
mask ROM versions, but it has PROM mode that enables writing
to built-in PROM.
Table 10 Product of built-in PROM version
Fig. 27 Pin configuration of built-in PROM version
60
M34282E2GP
PIN CONFIGURATION (TOP VIEW)
Product
X
V
X
OUT
G
G
G
G
E
E
2048 words
E
PROM size
SS
IN
(
3
1
0
0
1
2
2
9 bits)
10
1
2
3
4
5
6
7
8
9
Outline 20P2E/F-A
RAM size
(
64 words
4 bits)
MITSUBISHI
ELECTRIC
20P2E/F-A
Table 10 shows the product of built-in PROM version. Figure 27
and 28 show the pin configurations of built-in PROM versions.
The One Time PROM version has pin-compatibility with the mask
ROM version.
Package
20
19
18
17
16
15
14
13
12
11
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
One Time PROM [shipped in blank]
MITSUBISHI MICROCOMPUTERS
V
CARR
D
D
D
D
D
D
D
D
DD
0
1
6
7
2
3
4
5
ROM type
4282 Group