Access Memory. HM514400B Datasheet

HM514400B Memory. Datasheet pdf. Equivalent

HM514400B Datasheet
Recommendation HM514400B Datasheet
Part HM514400B
Description 1/048/576-word X 4-bit Dynamic Random Access Memory
Feature HM514400B; ADE-203-269A (Z) 1,048,576-word × 4-bit Dynamic Random Access Memory Rev. 1.0 Nov. 29, 1994 The Hit.
Manufacture Hitachi Semiconductor
Datasheet
Download HM514400B Datasheet




Hitachi Semiconductor HM514400B
ADE-203-269A (Z)
HM514400B/BL Series
HM514400C/CL Series
1,048,576-word × 4-bit Dynamic Random Access Memory
Rev. 1.0
Nov. 29, 1994
The Hitachi HM514400B/BL, HM514400C/CL
are CMOS dynamic RAM organized 1,048,576-
word × 4-bit. HM514400B/BL, HM514400C/CL
have realized higher density, higher performance
and various functions by employing 0.8 µm CMOS
process technology and some new CMOS circuit
design technologies. The HM514400B/BL,
HM514400C/CL offer Fast Page Mode as a high
speed access mode. Multiplexed address input
permits the HM514400B/BL, HM514400C/CL to
be packaged in standard 300-mil 26-pin plastic
SOJ, standard 400-mil 20-pin plastic ZIP and 26-
pin plastic TSOP II.
Features
• Single 5 V (±10%)
• High speed
— Access time
60 ns/70 ns/80 ns (max)
• Low power dissipation
— Active mode
605 mW/550 mW/495 mW (max)
— Standby mode 11 mW (max)
0.55 mW (max) (L-version)
• Fast page mode capability
• 1024 refresh cycles : 16 ms
1024 refresh cycles : 128 ms (L-version)
• 3 variations of refresh
RAS-only refresh
CAS-before-RAS refresh
— Hidden refresh
• Test function
• Battery back up operation
— HM514400BL Series (L-version)
— HM514400CL Series (L-version)



Hitachi Semiconductor HM514400B
HM514400B/BL, HM514400C/CL Series
Ordering Information
Type No.
HM514400BS-6
HM514400BS-7
HM514400BS-8
HM514400BLS-6
HM514400BLS-7
HM514400BLS-8
HM514400CS-6
HM514400CS-7
HM514400CS-8
HM514400CLS-6
HM514400CLS-7
HM514400CLS-8
HM514400BZ-6
HM514400BZ-7
HM514400BZ-8
HM514400BLZ-6
HM514400BLZ-7
HM514400BLZ-8
Access
time
60 ns
70 ns
80 ns
60 ns
70 ns
80 ns
60 ns
70 ns
80 ns
60 ns
70 ns
80 ns
60 ns
70 ns
80 ns
60 ns
70 ns
80 ns
Package
300-mil 26-pin
plastic SOJ
(CP-26/20D)
400-mil 20-pin
plastic ZIP
(ZP-20)
Type No.
HM514400CZ-6
HM514400CZ-7
HM514400CZ-8
HM514400CLZ-6
HM514400CLZ-7
HM514400CLZ-8
HM514400BTT-6
HM514400BTT-7
HM514400BTT-8
HM514400BLTT-6
HM514400BLTT-7
HM514400BLTT-8
HM514400CTT-6
HM514400CTT-7
HM514400CTT-8
HM514400CLTT-6
HM514400CLTT-7
HM514400CLTT-8
Access
time
60 ns
70 ns
80 ns
60 ns
70 ns
80 ns
60 ns
70 ns
80 ns
60 ns
70 ns
80 ns
60 ns
70 ns
80 ns
60 ns
70 ns
80 ns
Package
400-mil 20-pin
plastic ZIP
(ZP-20)
26-pin
plastic TSOPII
(TTP-26/20D)
2



Hitachi Semiconductor HM514400B
Pin Arrangement
HM514400B/BL, HM514400C/CL Series
HM514400BS/BLS Series
HM514400CS/CLS Series
I/O1 1
I/O2 2
WE 3
RAS 4
A9 5
26 VSS
25 I/O4
24 I/O3
23 CAS
22 OE
A0 9
A1 10
A2 11
A3 12
VCC 13
18 A8
17 A7
16 A6
15 A5
14 A4
(Top view)
HM514400BTT/BLTT Series
HM514400CTT/CLTT Series
I/O1 1
I/O2 2
WE 3
RAS 4
A9 5
26 VSS
25 I/O4
24 I/O3
23 CAS
22 OE
HM514400BZ/BLZ Series
HM514400CZ/CLZ Series
CAS 2
I/O4 4
I/O1 6
WE 8
A9 10
A1 12
A3 14
A4 16
A6 18
A8 20
1 OE
3 I/O3
5 VSS
7 I/O2
9 RAS
11 A0
13 A2
15 VCC
17 A5
19 A7
(Bottom view)
A0 9
A1 10
A2 11
A3 12
VCC 13
(Top view)
18 A8
17 A7
16 A6
15 A5
14 A4
3







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