OKI Semiconductor
MR27T6402L
4M–Word
×
16–Bit or 8M–Word
×
8–Bit
FEDR27T6402L-02-01
Issue Date: May. 9, 2005
P2ROM
PIN CONFIGURATION (TOP VIEW)
A21
A18
A17
A7
A6
A5
A4
A3
A2
1
2
3
4
5
6
7
8
9
44
A20
43
A19
42
A8
41
A9
40
A10
39
A11
38
A12
37
A13
36
A14
35
A15
34
A16
33
BYTE#
32
V
SS
31
D15/A–1
30
D7
29
D14
28
D6
27
D13
26
D5
25
D12
24
D4
23
V
CC
FEATURES
·4,194,304-word
×
16-bit / 8,388,608-word
×
8-bit electrically
switchable configuration
· Access time
2.7 V to 3.6 V power supply 90 ns MAX
3.0 V to 3.6 V power supply 80 ns MAX
· Operating current
20 mA MAX (5MHz)
· Standby current
10 µA MAX
· Input/Output TTL compatible
· Three-state output
A1
10
A0
11
CE#
12
V
SS
13
PACKAGES
· MR27T6402L-xxxMA
44-pin plastic SOP (SOP44-P-600-1.27-K)
· MR27T6402L-xxxTN
48-pin plastic TSOP (TSOP I 48-P-1220-0.50-1K)
OE#
14
D0
15
D8
16
D1
17
D9
18
D2
19
D10
20
D3
21
D11
22
44SOP
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.
·
Pin Compatible with Mask ROM
and some FLASH
products.
A15
A14
A13
A12
A11
A10
A9
A8
A19
1
2
3
4
5
6
7
8
9
48
A16
47
BYTE#
46
V
SS
45
D15/A–1
44
D7
43
D14
42
D6
41
D13
40
D5
39
D12
38
D4
37
V
CC
36
D11
35
D3
34
D10
33
D2
32
D9
31
D1
30
D8
29
D0
28
OE#
27
V
SS
26
CE#
25
A0
A20
10
NC
11
NC
12
A21
13
NC
NC
15
14
A18
16
A17
17
A7
18
A6
19
A5
20
A4
21
A3
A2
23
22
A1
24
48TSOP(Type-I)
1/10
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