OKI Semiconductor
MR27C1602B
1,048,576–Word
×
16–Bit or 2,097,152–Word
×
8–Bit One Time PROM
FEDR27C1602B-01-03
Issue Date: Jun. 17, 2003
GENERAL DESCRIPTION
The MR27C1602B is a 16 Mbit electrically One Time Programmable Read-Only Memory that can be electrically
switched between 1,048,576-word
×
16-bit and 2,097,152-word
×
8-bit by the state of the
BYTE#
pin. The
MR27C1602B supports high speed asynchronous read operation using a single 5.0V power supply.
FEATURES
· 1,048,576-word
×
16-bit/2,097,152-word
×
8-bit electrically switchable configuration
· +5.0 V power supply
· Access time
90 nS MAX
· Operating current
70 mA MAX
· Standby current
50 µA MAX
· Input/Output TTL compatible
· Tri-state output
· Packages:
42-pin plastic DIP (DIP42-P-600-2.54) (MR27C1602BRA)
44-pin plastic SOP (SOP44-P-600-1.27-K (MR27C1602BMA)
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FEDR27C1602B-01-03
OKI Semiconductor
MR27C1602B (OTP)
PIN CONFIGURATION (TOP VIEW)
NC
1
A18
2
A17
3
A7
4
A6
5
A5
6
A4
7
A3
8
A2
9
A1
10
A0
11
CE#
12
V
SS
13
OE#
14
D0
15
D8
16
D1
17
D9
18
D2
19
D10
20
D3
21
D11
22
44-pin SOP
44
NC
43
A19
42
A8
41
A9
40
A10
39
A11
38
A12
37
A13
36
A14
35
A15
34
A16
33
BYTE#/V
PP
32
V
SS
31
D15/A–1
30
D7
29
D14
28
D6
27
D13
26
D5
25
D12
24
D4
23
V
CC
A18
1
A17
2
A7
3
A6
4
A5
5
A4
6
A3
7
A2
8
A1
9
A0
10
CE#
11
V
SS
12
OE#
13
D0
14
D8
15
D1
16
D9
17
D2
18
D10
19
D3
20
D11
21
42-pin DIP
42
A19
41
A8
40
A9
39
A10
38
A11
37
A12
36
A13
35
A14
34
A15
33
A16
32
BYTE#/V
PP
31
V
SS
30
D15/A–1
29
D7
28
D14
27
D6
26
D13
25
D5
24
D12
23
D4
22
V
CC
Pin name
D15/A–1
A0 to A19
D0 to D14
CE#
OE#
BYTE#/V
PP
V
CC
V
SS
NC
Data output/Address input
Address input
Data output
Chip enable
Output enable
Functions
Mode switch/Program power supply voltage
Power supply voltage
GND
Non connection
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FEDR27C1602B-01-03
OKI Semiconductor
MR27C1602B (OTP)
BLOCK DIAGRAM
A–1
× 8/× 16 Switch
CE#
CE
OE#
OE
BYTE#/V
PP
PGM
Column Decoder
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
Row Decoder
Memory Cell Matrix
1,048,576 × 16-Bit or 2,097,152 × 8-Bit
Address Buffer
Multiplexer
Output Buffer
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D12
D14
D15
D11
D13
In 8-bit output mode, these pins
are placed in a high-Z state and
pin D15 functions as the A-1
address pin.
FUNCTION TABLE
Mode
Read (16-Bit)
Read (8-Bit)
Output disable
Standby
Program
Program inhibit
Program verify
CE#
L
L
L
H
L
H
H
OE#
L
L
H
∗
H
H
L
9.75 V
4.0 V
BYTE#/V
PP
H
L
H
L
H
L
5.0 V
D
OUT
V
CC
D0 to D7
D8 to D14
D
OUT
Hi–Z
Hi–Z
Hi–Z
D
IN
Hi–Z
D
OUT
L/H
∗
∗
D15/A–1
∗:
Don’t Care (H or L)
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FEDR27C1602B-01-03
OKI Semiconductor
MR27C1602B (OTP)
ABSOLUTE MAXIMUM RATINGS
Parameter
Operating temperature under bias
Storage temperature
Input voltage
Output voltage
Power supply voltage
Program power supply voltage
Power dissipation per package
Symbol
Ta
Tstg
V
I
V
O
V
CC
V
PP
P
D
—
relative to V
SS
Condition
—
Value
0 to 70
–55 to 125
–0.5 to V
CC
+0.5
–0.5 to V
CC
+0.5
–0.5 to 7
–0.5 to 11.5
1.0
Unit
°C
°C
V
V
V
V
W
RECOMMENDED OPERATING CONDITIONS
(Ta = 0 to 70°C)
Parameter
V
CC
power supply voltage
V
PP
power supply voltage
Input “H” level
Input “L” level
Symbol
V
CC
V
PP
V
IH
V
IL
V
CC
= 4.5 to 5.5 V
Condition
Min.
4.5
–0.5
2.2
–0.5∗∗
Typ.
—
—
—
—
Max.
5.5
V
CC
+0.5
V
CC
+0.5∗
0.8
Unit
V
V
V
V
Voltage is relative to V
SS
.
∗
: Vcc+1.5V(Max.) when pulse width of overshoot is less than 10ns.
∗∗
: -1.5V(Min.) when pulse width of undershoot is less than 10ns.
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FEDR27C1602B-01-03
OKI Semiconductor
MR27C1602B (OTP)
ELECTRICAL CHARACTERISTICS
DC Characteristics
(V
CC
= 5.0 V ± 0.5 V, Ta = 0 to 70°C)
parameter
Input leakage current
Output leakage current
V
CC
power supply current
(Standby)
V
CC
power supply current
(Read)
V
PP
power supply current
Input “H” level
Input “L” level
Output “H” level
Output “L” level
Symbol
I
LI
I
LO
I
CCSC
I
CCST
I
CCA
I
PP
V
IH
V
IL
V
OH
V
OL
Condition
V
I
= 0 to V
CC
V
O
= 0 to V
CC
CE# = V
CC
CE# = V
IH
CE# = V
IL
, OE# = V
IH
tc = 90 ns
V
PP
= V
CC
—
—
I
OH
= –400
µA
I
OL
= 2.1 mA
Min.
—
—
—
—
—
—
2.2
–0.5∗∗
2.4
—
Typ.
—
—
—
—
—
—
—
—
—
—
Max.
10
10
50
1
70
10
V
CC
+0.5∗
0.8
—
0.4
Unit
µA
µA
µA
mΑ
mA
µA
V
V
V
V
Voltage is relative to V
SS
.
∗
: Vcc+1.5V(Max.) when pulse width of overshoot is less than 10ns.
∗∗
: -1.5V(Min.) when pulse width of undershoot is less than 10ns.
AC Characteristics
(V
CC
= 5.0 V ± 0.5 V, Ta = 0 to 70°C)
Parameter
Address cycle time
Address access time
CE access time
OE access time
Output disable time
Output hold time
Symbol
t
C
t
ACC
t
CE
t
OE
t
CHZ
t
OHZ
t
OH
Condition
—
CE# = OE# = V
IL
OE# = V
IL
CE# = V
IL
OE# = V
IL
CE# = V
IL
CE# = OE# = V
IL
Min.
90
—
—
—
0
0
0
Max.
—
90
90
45
30
25
—
Unit
ns
ns
ns
ns
ns
ns
ns
Measurement conditions
Input signal level -------------------------------- 0 V/3 V
Input timing reference level ------------------ 0.8 V/2.0 V
Output load--------------------------------------- 1TTL gate + 100 pF
Output timing reference level ---------------- 0.8 V/2.0 V
2.08 V
800
Ω
Output
100 pF
(Including scope and jig)
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