GMS90 Series
HYUNDAI MicroElectronics
EPROM Programming and Verification Characteristics
TA= 21°C to 27°C, VCC= 5V + 10%, − 15%; VSS=0V;
Limit Values
Parameter
Symbol
Unit
Min.
Max.
VPP
IPP
12.5
13.0
V
Programming supply voltage
Programming supply current
Oscillator frequency
-
50
mA
1/tCLCL
tAVGL
tGHAX
tDVGL
tGHDX
tEHSH
tSHGL
tGHSL
tGLGL
tAVQV
tELQV
tEHQZ
tGHGL
4
6
MHz
48tCLCL
-
-
-
Address setup to PROG low
Address hold after PROG
Data setup to PROG
48tCLCL
-
48tCLCL
-
-
48tCLCL
-
-
Data hold after PROG
P2.7 (ENABLE) high to VPP
VPP setup to PROG
48tCLCL
-
-
10
10
90
-
-
-
µs
µs
µs
-
VPP hold after PROG
110
PROG width
48tCLCL
48tCLCL
48tCLCL
-
Address to data valid
-
-
ENABLE low to data valid
Data float after ENABLE
PROG high to PROG low
0
-
10
µs
PROGRAMMING
VERIFICATION
P1.0-P1.7
P2.0-P2.5
P3.4
ADDRESS
ADDRESS
DATA OUT
t
AVQV
PORT 0
DATA IN
t
DVGL
t
GHDX
25 or 10
PULSES
t
t
AVGL
GHAX
ALE/PROG
t
t
SHGL
GHGL
t
GHSL
tG LG L
V
PP
EA/V
PP
TTL HIGH
TTL HIGH
TTL HIGH
t
ELQV
t
t
EHQZ
EHSH
P2.7
(ENABLE)
Figure 15. EPROM Programming and Verification
Oct. 2000 Ver 3.1a
51
HYNIX [ HYNIX SEMICONDUCTOR ]
