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S3P8245/P8249 OTP
OPERATING MODE CHARACTERISTICS
When 12.5 V is supplied to the V
entered. The operating mode (read, write, or read protection) is selected according to the input signals to the pins
listed in Table 21-3 below.
V
V
(TEST)
DD
PP
5 V
5 V
12.5 V
12.5 V
12.5 V
NOTE: "0" means Low level; "1" means High level.
°
°
(T
= -40
C to +85
C, V
A
Parameter
Operating voltage
Input high
voltage
Input low voltage
Output high voltage
Output low voltage
21-4
(TEST) pin of the S3P8245/P8249, the EPROM programming mode is
PP
Table 21-3. Operating Mode Selection Criteria
MEM
REG/MEM
0
0
0
1
Table 21-4. D.C Electrical Characteristics
= 1.8 V to 5.5 V)
DD
Symbol
Conditions
V
f
= 10 MHz
DD
CPU
All input pins except V
V
Port 4,5
V
IH1
V
X
, XT
IH2
IN
IN
V
All input pins except V
IH3
V
X
, XT
IL1
IN
IN
V
V
= 5 V; I
IL2
DD
All output pins
V
V
= 5 V; I
OH
DD
All output pins
V
OL
Address(A15–A0)
0000H
0000H
0000H
0E3FH
Min
2.7
1.8
IH2, 3
≥ V
0.8 V
LCD2
DD
0.8 V
V
IL2
DD
= -1 mA
OH
= 2 mA
V
OL
DD
S3C8248/C8245/P8245/C8247/C8249/P8249
R/W
1
EPROM read
0
EPROM program
1
EPROM verify
0
EPROM read protection
Typ
–
–
–
DD
–
DD
- 0.1
–
–
–
0.2 V
-1.0
–
–
–
Mode
Max
Unit
5.5
V
5.5
V
DD
V
DD
V
DD
DD
0.1
–
0.4
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