The Universal Peripheral Interface (UPI) 8XC42 is an enhanced CHMOS version of the industry standard Intel UPI-42 family. It is pin, software and architecturally compatible with the NMOS UPI family. This microcontroller has a slave interface included to enable the UPI device to function as a slave peripheral controller in the system. User programmable memory array has been increased to 4K from the previous 2K in the NMOS family. Program memory is available in ROM as well as OTP.
PRODUCT
RAM
ROM
OTP
VOLTAGE
TEMP RANGE
PACKAGE
80C42
256
4K
N/A
5V
0 to 70C
EE,VJ,EG
82C42 †
256
N/A
N/A
5V
0 to 70C
EE,VJ,EG
87C42
256
N/A
4K
5V
0 to 70C
EE,VJ,EG
† Pre-programmed with various versions of Multikey/42 firmware EE = 44ld PLCC, VJ = 40ld PDIP, EG = 44ld QFP
