UPD75P116 Datasheet, PDF (11/32 Pages) NEC – 4-BIT SINGLE-CHIP MICROCOMPUTER

µPD75P116
2. DIFFERENCES BETWEEN µPD75P116 AND µPD75116
The µPD75P116 is a product in which the program memory (mask ROM) of the µPD75116 is changed to a user
programmable PROM. Other functions of the µPD75P116 and µPD75116 are virtually the same only with the
differences shown in Table 2-1.
For details of CPU functions and on-chip hardware, see the “µPD75116 User’s Manual” (IEM-922).
Table 2-1 Differences between µPD75P116 and µPD75116
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Item
Program memory
Data memory
Pull-up resistor (ports 12 to 14)
Power-on reset function
Operating voltage range
31 pins (SDIP)
Pin function
57 pins (QFP)
33 to 36 pins (SDIP)
59 to 62 pins (QFP)
Electrical specification
Other
µPD75P116
One-time PROM
No
5 V ± 10 %
VPP
0000H-3F7FH
(16256 × 8 bits)
0000H-01FFH
(512 × 4 bits)
µPD75116
Mask ROM
Mask option
2.7 to 6.0 V
NC
P33/MD3 to P30/MD0
P33 to P30
Different consumption current, operating temperature range, etc. Refer to the
electrical specifications parameters for each data sheet for details.
Different noise resistance, noise radiation, etc., due to difference in the size of
circuits and mask layout.
Note
The PROM and ROM products differ in noise resistance and noise radiation. If you are considering
replacement of the PROM products by the mask ROM product in the transition from preproduction to
volume production, this should be thoroughly evaluated with the mask ROM CS product (not ES product).
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