Fig. 3-18; Fig. 3-19; Fig. 3-20- Page 58

CHAPTER 3  THEORY OF OPERATION

3-16

  1.3.8

EEPROM

The EEPROM is X24C01A type of two-wire method with a 128 x 8 bits configuration.

Fig. 3-18

The EEPROM is X24C04 type of two-wire method with a 512 x 8 bits configuration.

Fig. 3-19

The EEPROM is X24C32 type of two-wire method with a 4096 x 8 bits configuration.

Fig. 3-20

  1.3.9

Reset circuit

The reset IC is a RN5VD42A.  The reset voltage is 4.2V (typ.) and the LOW period of reset is
80ms (typ.)

Fig. 3-21

HL-1250

HL-1270N

HL-1030/1240

HL-1030/1240