FEDR27T12800J-02-07
Issue Date: Jul. 9, 2004
OKI Semiconductor
MR27T12800J
8M–Word × 16–Bit or 16M–Word × 8–Bit P2ROM
FEATURES
PIN CONFIGURATION (TOP VIEW)
·8,388,608-word × 16-bit/16,777,216-word × 8-bit electrically
switchable configuration
MR27T12800J-xxxTN
MR27T12800J-xxxTNE
1
2
48 Vss
47 Vss
46 D15/A–1
45 D7
BYTE#
A16
A15
A14
A13
A12
A11
A10
A9
· Access time
3
· MR27T12800J-xxxTN, MR27T12800J-xxxTY
· 2.7 V to 3.6 V power supply
· MR27T12800J-xxxTNE , MR27T12800J-xxxTYE
· 2.7 V to 3.0 V power supply
· 3.0 V to 3.6 V power supply
4
90 ns MAX
5
44 D14
43 D6
6
7
42 D13
41 D5
120 ns MAX
100 ns MAX
8
9
40 D12
39 D4
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
A8
38 VCC
37 VCC
36 A22
35 D11
34 D3
A19
A21
A20
A18
A17
A7
· Operating current
· Standby current
· Input/Output TTL compatible
· Three-state output
25 mA MAX(5MHz)
10 µA MAX
33 D10
32 D2
A6
31 D9
A5
PACKAGES
30 D1
A4
29 D8
A3
· MR27T12800J-xxxTN , MR27T12800J-xxxTNE
48-pin plastic TSOP (TSOP I 48-P-1220-0.50-1K)
28 D0
A2
27 OE #
26 Vss
25 Vss
A1
A0
CE#
· MR27T12800J-xxxTY, MR27T12800J-xxxTYE
48-pin plastic TSOP (TSOP I 48-P-1220-0.50-L)
MR27T12800J-xxxTY
MR27T12800J-xxxTYE
P2ROM ADVANCED TECHNOLOGY
Vss
Vss
D15/A–1
D7
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
2
BYTE#
A16
A15
A14
A13
A12
A11
A10
A9
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;
3
4
D14
D6
5
6
D13
D5
7
8
D12
D4
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
A8
VCC
VCC
A22
D11
D3
A19
A21
A20
A18
A17
A7
· 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.
D10
D2
A6
D9
A5
D1
A4
D8
A3
D0
A2
OE #
Vss
Vss
A1
A0
CE#
48TSOP(Type-I)
· Custom Marking is available at no additional charge.
· Pin Compatible with Mask ROM
1/10