HM6216255HCI Series
Wide Temperature Range Version
4M High Speed SRAM (256-kword
×
16-bit)
ADE-203-1305B (Z)
Rev. 2.0
Dec. 5, 2002
Description
The HM6216255HCI Series is a 4-Mbit high speed static RAM organized 256-k word
×
16-bit. It has
realized high speed access time by employing CMOS process (6-transistor memory cell) and high speed
circuit designing technology. It is most appropriate for the application which requires high speed, high
density memory and wide bit width configuration, such as cache and buffer memory in system. It is
packaged in 400-mil 44-pin plastic SOJ and 400-mil 44-pin plastic TSOPII.
Features
•
Single 5.0 V supply: 5.0 V
±
10%
•
Access time: 12 ns (max)
•
Completely static memory
No clock or timing strobe required
•
Equal access and cycle times
•
Directly TTL compatible
All inputs and outputs
•
Operating current: 160 mA (max)
•
TTL standby current: 40 mA (max)
•
CMOS standby current: 5 mA (max)
•
Center V
CC
and V
SS
type pin out
•
Temperature range:
−40
to +85°C
Ordering Information
Type No.
HM6216255HCJPI-12
HM6216255HCTTI-12
Access time
12 ns
12 ns
Device marking
HM6216255CJPI12
HM6216255CTTI12
Package
400-mil 44-pin plastic SOJ (CP-44D)
400-mil 44-pin plastic TSOPII (TTP-44DE)
HM6216255HCI Series
Pin Arrangement
44-pin SOJ
A0
A1
A2
A3
A4
I/O1
I/O2
I/O3
I/O4
V
CC
V
SS
I/O5
I/O6
I/O7
I/O8
A5
A6
A7
A8
A9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A17
A16
A15
A0
A1
A2
A3
A4
I/O1
I/O2
I/O3
I/O4
VCC
VSS
I/O5
I/O6
I/O7
I/O8
A5
A6
A7
A8
A9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44-pin TSOP
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A17
A16
A15
I/O16
I/O15
I/O14
I/O13
V
SS
V
CC
I/O12
I/O11
I/O10
I/O9
NC
A14
A13
A12
A11
A10
I/O16
I/O15
I/O14
I/O13
VSS
VCC
I/O12
I/O11
I/O10
I/O9
NC
A14
A13
A12
A11
A10
(Top View)
(Top View)
Pin Description
Pin name
A0 to A17
I/O1 to I/O16
CS
OE
WE
UB
LB
V
CC
V
SS
NC
Function
Address input
Data input/output
Chip select
Output enable
Write enable
Upper byte select
Lower byte select
Power supply
Ground
No connection
Rev. 2, Dec. 2002, page 2 of 15
HM6216255HCI Series
Block Diagram
(LSB)
A14
A13
A12
A5
A6
A7
A11
A10
A3
A1
(MSB)
I/O1
.
.
.
I/O8
I/O9
.
.
.
I/O16
Row
decoder
1024-row
×
32-column
×
8-block
×
16-bit
(4,194,304 bits)
Internal
voltage V
CC
generator
V
SS
CS
Column I/O
Input
data
control
Column decoder
CS
WE
CS
LB
UB
OE
CS
(LSB)
A8 A9 A17 A15 A16 A0 A2 A4
(MSB)
Rev. 2, Dec 2002, page 3 of 15
HM6216255HCI Series
Operation Table
CS
H
L
L
L
L
L
L
L
L
L
OE
×
H
L
L
L
L
×
×
×
×
WE
×
H
H
H
H
H
L
L
L
L
LB
×
×
L
L
H
H
L
L
H
H
UB
×
×
L
H
L
H
L
H
L
H
Mode
Standby
Output disable
Read
V
CC
current
I
SB
, I
SB1
I
CC
I
CC
I/O1−I/O8
−
High-Z
High-Z
Output
Output
High-Z
High-Z
Input
Input
High-Z
High-Z
I/O9−I/O16
−
High-Z
High-Z
Output
High-Z
Output
High-Z
Input
High-Z
Input
High-Z
Ref. cycle
Read cycle
Read cycle
Read cycle
Write cycle
Write cycle
Write cycle
Lower byte read I
CC
Upper byte read I
CC
Write
I
CC
I
CC
Lower byte write I
CC
Upper byte write I
CC
I
CC
Note: H: V
IH
, L: V
IL
,
×:
V
IH
or V
IL
Absolute Maximum Ratings
Parameter
Supply voltage relative to V
SS
Voltage on any pin relative to V
SS
Power dissipation
Operating temperature
Storage temperature
Storage temperature under bias
Symbol
V
CC
V
T
P
T
Topr
Tstg
Tbias
Value
−0.5
to +7.0
−0.5*
to V
CC
+ 0.5*
1
2
Unit
V
V
W
°C
°C
°C
1.0
−40
to +85
−55
to +125
−40
to +85
Notes: 1. V
T
(min) =
−2.0
V for pulse width (under shoot)
≤
6 ns.
2. V
T
(max) = V
CC
+ 2.0 V for pulse width (over shoot)
≤
6 ns.
Rev. 2, Dec. 2002, page 4 of 15
HM6216255HCI Series
Recommended DC Operating Conditions
(Ta =
−40
to +85°C)
Parameter
Supply voltage
Symbol
V
CC
*
V
SS
*
Input voltage
Notes: 1.
2.
3.
4.
V
IH
V
IL
3
4
Min
4.5
0
2.2
−0.5*
1
Typ
5.0
0
Max
5.5
0
V
CC
+ 0.5*
0.8
2
Unit
V
V
V
V
V
IL
(min) =
−2.0
V for pulse width (under shoot)
≤
6 ns.
V
IH
(max) = V
CC
+ 2.0 V for pulse width (over shoot)
≤
6 ns.
The supply voltage with all V
CC
pins must be on the same level.
The supply voltage with all V
SS
pins must be on the same level.
DC Characteristics
(Ta =
−40
to +85°C, V
CC
= 5.0 V
±
10%, V
SS
= 0 V)
Parameter
Input leakage current
Output leakage current*
1
Symbol Min
|I
LI
|
|I
LO
|
I
CC
I
SB
I
SB1
Typ*
2.5
1
Max
2
2
160
40
5
Unit
µA
µA
mA
mA
mA
Test conditions
V
IN
= V
SS
to V
CC
V
IN
= V
SS
to V
CC
CS
= V
IL
, I
OUT
= 0 mA
Other inputs = V
IH
/V
IL
CS
= V
IH
,
Other inputs = V
IH
/V
IL
V
CC
≥
CS
≥
V
CC
−
0.2 V,
(1) 0 V
≤
V
IN
≤
0.2 V or
(2) V
CC
≥
V
IN
≥
V
CC
−
0.2 V
Operating power supply current
Standby power supply current
Output voltage
Note:
V
OL
V
OH
2.4
0.4
V
V
I
OL
= 8 mA
I
OH
=
−4
mA
1. Typical values are at V
CC
= 5.0 V, Ta = +25°C and not guaranteed.
Capacitance
(Ta = +25°C, f = 1.0 MHz)
Parameter
Input capacitance*
Note:
1
1
Symbol
C
IN
C
I/O
Min
Typ
Max
6
8
Unit
pF
pF
Test conditions
V
IN
= 0 V
V
I/O
= 0 V
Input/output capacitance*
1. This parameter is sampled and not 100% tested.
Rev. 2, Dec 2002, page 5 of 15
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