MR27T401E Datasheet, PDF (1/9 Pages) OKI electronic componets – 512k-Word x 8-Bit

OKI Semiconductor
MR27T401E
512K–Word × 8–Bit P2ROM
FEDR27T401E-02-01
Issue Date: Apr. 17, 2002
FEATURES
·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
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)
PIN CONFIGURATION (TOP VIEW)
DC 1
A16 2
A15 3
A12 4
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
D0 13
D1 14
D2 15
VSS 16
32 Vcc
31 A18
30 A17
29 A14
28 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 1
A9 2
A8 3
A13 4
A14 5
A17 6
A18 7
Vcc 8
DC 9
A16 10
A15 11
A12 12
A7 13
A6 14
A5 15
A4 16
32 OE#
31 A10
30 CE#
29 D7
28 D6
27 D5
26 D4
25 D3
24 Vss
23 D2
22 D1
21 D0
20 A0
19 A1
18 A2
17 A3
32TSOP(Type-I)
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