OKI Semiconductor
MR27T401E
512K–Word
×
8–Bit
P2ROM
FEDR27T401E-02-01
Issue Date: Apr. 17, 2002
FEATURES
PIN CONFIGURATION (TOP VIEW)
·524,288-word
×
8-bit
· 2.7 V to 3.6 V power supply
· Access time
100 ns MAX
· Operating current
25 mA MAX
· Standby current
10 µA MAX
· Input/Output TTL compatible
· Three-state output
DC
A16
A15
A12
A7
A6
A5
1
2
3
4
5
6
7
32
31
30
29
28
Vcc
A18
A17
A4
8
A3
9
PACKAGES
· MR27T401E-xxxMA
32-pin plastic SOP (SOP32-P-525-1.27-K)
· MR27T401E-xxxTA
32-pin plastic TSOP (TSOP I 32-P-814-0.50-1K)
A2
A1
A0
D0
D1
D2
VSS
10
11
12
13
14
15
16
A14
A13
27
A8
26
A9
25
A11
24
OE#
23
A10
22
CE#
21
D7
20
D6
19
D5
18
D4
17
D3
P2ROM ADVANCED TECHNOLOGY
P2ROM stands for Production Programmed ROM. This
exclusive Oki technology utilizes factory test equipment for
programming the customers code into the P2ROM prior to final
production testing. Advancements in this technology allows
production costs to be equivalent to MASKROM and has many
advantages and added benefits over the other non-volatile
technologies, which include the following;
·
Short lead time,
since the P2ROM is programmed at the
final stage of the production process, a large P2ROM
inventory "bank system" of un-programmed packaged
products are maintained to provide an aggressive lead-time
and minimize liability as a custom product.
·
No mask charge,
since P2ROMs do not utilize a custom
mask for storing customer code, no mask charges apply.
·
No additional programming charge,
unlike Flash and
OTP that require additional programming and handling
costs, the P2ROM already has the code loaded at the
factory with minimal effect on the production throughput.
The cost is included in the unit price.
·
Custom Marking is
available at no additional charge.
32SOP,
A11
A9
A8
A13
A14
A17
A18
Vcc
DC
A16
A15
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE#
A10
CE#
D7
D6
D5
D4
D3
Vss
D2
D1
D0
A0
A1
A2
A3
32TSOP(Type-I)
1/9
OKI [ OKI ELECTRONIC COMPONETS ]
