Microcomputer
4-Bit Single Chip Microcomputer
Chip Microcomputer
µ
PD7500 Series
s
µ
PD7500 series product evolution
µ
PD7503A
µ
PD7502A
Internal LCD
controller/driver
General purpose
µ
PD7508B
µ
PD7507B
µ
PD7564A
One-time PROM
µ
PD75P54/64
µ
PD7554A
Standard
Internal SIO
µ
PD7566A
µ
PD75P56/66
µ
PD7556A
Internal comparator
s
µ
PD7500 series
Type number
Features
Internal LCD controll-
er/driver
General purpose
Internal
serial
interface
24 SEG
4K
High speed (2.86
µ
s)
R oscillation
External clock input
Ceramic oscillation
R oscillation
External clock input
Ceramic oscillation
For 7554A
OTP
For 7564A
For 7556A
For 7566A
1K
64
1K
64
2K
4K
ROM (∞8)
2K
RAM (∞4)
128
224
128
224
32
23
• 64-pin QFP
• 40-pin SDIP
• 44-pin QFP
• 20-pin SDIP
• 20-pin SOP
2.5 to 6.0 V
I/O
Package
Supply voltage
µ
PD7502A
µ
PD7503A
µ
PD7507B
µ
PD7508B
µ
PD7554A
µ
PD7564A
µ
PD7556A
µ
PD7566A
µ
PD75P54
µ
PD75P64
µ
PD75P56
µ
PD75P66
2.2 to 6.0 V
16
15
20
19
16
15
20
19
2.0 to 6.0 V
2.7 to 6.0 V
2.0 to 6.0 V
2.7 to 6.0 V
Stan-
dard
device
Internal
comparator
• 24-pin SDIP
• 24-pin SOP
• 20-pin SDIP
• 20-pin SOP
4.5 to 6.0 V
• 24-pin SDIP
• 24-pin SOP
17
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