Eeprom; Reset Circuit - Brother 1240 Service Manual

CHAPTER 3 THEORY OF OPERATION
1.3.8

EEPROM

HL-1030/1240
The EEPROM is X24C01A type of two-wire method with a 128 x 8 bits configuration.
HL-1250
The EEPROM is X24C04 type of two-wire method with a 512 x 8 bits configuration.
HL-1270N
The EEPROM is X24C32 type of two-wire method with a 4096 x 8 bits configuration.
1.3.9

Reset circuit

HL-1030/1240
The reset IC is a RN5VD42A. The reset voltage is 4.2V (typ.) and the LOW period of reset is
80ms (typ.)
Fig. 3-18
Fig. 3-19
Fig. 3-20
Fig. 3-21
3-16