87C51 80C51BH 80C31BH
PROCESS INFORMATION
The 87C51 BH is manufactured on the CHMOS III-E
process Additional process and reliability informa-
tion is available in Intel’s Components Quality and
Reliability Handbook Order No 210997
PACKAGES
Part
87C51 BH
Prefix
P
D
N
S
Package Type
40-Pin Plastic
DIP (OTP)
40-Pin CERDIP
(EPROM)
44-Pin PLCC (OTP)
44-Pin QFP (OTP)
DIP
272335 – 2
PLCC
272335 – 3
Do not connect reserved pins
QFP
Figure 2 Pin Connections
272335 – 4
3