HN27C4000G Datasheet, PDF (16/20 Pages) Hitachi Semiconductor – 524288-Word ®8-Bit/262144-Word X 16-Bit CMOS UV Erasable and Programmable ROM

HN27C4000G Series
START
SET PAGE PROG LATCH MODE
V_PP= 12.5_O±_E0=.31V2.0V_{C±C0=.56.V25} ± 0.25 V
Address = 0
Latch
Address + 1 Address
Latch
Address + 1 Address
Latch
Address + 1 Address
Latch
SET PAGE PROG. MODE
VPP = 12.5 ± 0.3 V VCC= 6.25 ± 0.25 V
Address + 1 Address
Program t_PW = 50 µs ± 5%
NO
LAST
address?
YES
PAGE PROG. RESET
V_PP = V_CC = 6.25 ± 0.25 V
SET WORD PROG./VERIFY MODE
VPP = 12.5 ± 0.3 V VCC= 6.25 ± 0.25 V
Address = 0
n=0
Address + 1 Address
GO
VERIFY
NOGO
n+1 n
Program t_PW = 50 µs ± 5%
VERIFY
GO
LAST
all address?
NOGO
YES
SET READ MODE
V_CC = 5.0 ± 0.5 V V_PP = V_CC
READ
all address
GO
END
NOGO
Optional Page Programming Flowchart
16
n = 10? ^NO
YES
FAIL