M27C256B-12C1 STMicroelectronics, M27C256B-12C1 Datasheet - Page 17

• Manufacturer Part Number: M27C256B-12C1
• Description: IC OTP 256KBIT 120NS 32PLCC
• Manufacturer: STMicroelectronics

Specifications of M27C256B-12C1

• Format - Memory: EPROMs
• Memory Type: OTP EPROM
• Memory Size: 256K (32K x 8)
• Speed: 120ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 32-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1644-5

M27C256B
Table 10.
1. T
2. V
3. Sampled only, not 100% tested.
Symbol Alt
t
t
)
GHQZ
EHQZ
t
t
t
t
AVQV
GLQV
AXQX
ELQV
A
CC
= 0 to 70°C, –40 to 85°C, –40 to 105°C or –40 to 125°C; V
(3)
(3)
must be applied simultaneously with or before V
t
t
t
ACC
t
t
t
CE
OE
OH
DF
DF
Read mode AC characteristics 2
Address Valid to
Output Valid
Chip Enable Low
to Output Valid
Output Enable
Low to Output
Valid
Chip Enable High
to Output Hi-Z
Output Enable
High to Output
Hi-Z
Address
Transition to
Output Transition
Parameter
Condition
E = V
E = V
G = V
G = V
G = V
G = V
E = V
E = V
Test
IL
IL
IL
IL
IL
IL
IL
IL
,
,
Min Max Min Max Min Max Min Max
0
0
0
PP
-90
(1) (2)
and removed simultaneously or after V
90
90
40
30
30
CC
0
0
0
= 5V ± 5% or 5V ± 10%; V
-10
M27C256B
100
100
50
30
30
0
0
0
DC and AC parameters
-12
120
120
60
40
40
-15/-20/-25
PP
0
0
0
= V
PP
.
150
150
CC
65
50
50
17/24
Unit
ns
ns
ns
ns
ns
ns