HM514170C PDF даташит
Спецификация HM514170C изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «Dynamic Random Access Memory». |
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Детали детали
Номер произв | HM514170C |
Описание | Dynamic Random Access Memory |
Производители | Hitachi Semiconductor |
логотип |
26 Pages
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HM514170C Series
HM51S4170C Series
262,144-word × 16-bit Dynamic Random Access Memory
Rev. 1.0
Jul. 21, 1995
Description
The Hitachi HM51(S)4170C are CMOS dynamic RAM organized as 262,144-word × 16-bit.
HM51(S)4170C 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 HM51(S)4170C
offer fast page mode as a high speed access mode. Multiplexed address input permits the
HM51(S)4170C to be packaged in standard 400-mil 40-pin plastic SOJ and standard 400-mil 44-pin
plastic TSOPII. Internal refresh timer enables HM51S4170C self refresh operation.
Features
• Single 5 V (±10%)
• High speed
— Access time: 70 ns/80 ns (max)
• Low power dissipation
— Active mode: 660 mW/578 mW (max)
— Standby mode: 11 mW (max)
1.1 mW (max) (L-version)
• Fast page mode capability
• 1024 refresh cycles: 16 ms
128 ms (L-version)
• 2 WE -byte control
• 2 variations of refresh
— RAS -only refresh
— CAS -before-RAS refresh
• Battery backup operation (L-version)
• Self refresh operation (HM51S4170C)
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HM514170C, HM51S4170C Series
Ordering Information
Type No.
HM514170CJ-7
HM514170CJ-8
HM514170CLJ-7
HM514170CLJ-8
HM51S4170CJ-7
HM51S4170CJ-8
HM51S4170CLJ-7
HM51S4170CLJ-8
HM514170CTT-7
HM514170CTT-8
HM514170CLTT-7
HM514170CLTT-8
HM51S4170CTT-7
HM51S4170CTT-8
HM51S4170CLTT-7
HM51S4170CLTT-8
Access Time
70 ns
80 ns
70 ns
80 ns
70 ns
80 ns
70 ns
80 ns
70 ns
80 ns
70 ns
80 ns
70 ns
80 ns
70 ns
80 ns
Package
400-mil 40-pin plastic SOJ (CP-40DA)
400-mil 44-pin plastic TSOPII (TTP-44/40DB)
2
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Pin Arrangement
HM514170CJ/CLJ Series
HM51S4170CJ/CLJ Series
VCC
I/O0
I/O1
I/O2
I/O3
VCC
I/O4
I/O5
I/O6
I/O7
NC
LWE
UWE
RAS
A9
A0
A1
A2
A3
VCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
(Top view)
VSS
I/O15
I/O14
I/O13
I/O12
VSS
I/O11
I/O10
I/O9
I/O8
NC
NC
CAS
OE
A8
A7
A6
A5
A4
VSS
Pin Description
Pin Name Function
A0 – A9
Address input
– Row address
– Column address
– Refresh address
A0 – A9
A0 – A7
A0 – A9
I/O0 – I/O15 Data-in/data-out
RAS
Row address strobe
CAS
Column address strobe
UWE / LWE Read/write enable
OE Output enable
VCC Power (+5 V)
VSS Ground
NC No connection
HM514170C, HM51S4170C Series
HM514170CTT/CLTT Series
HM51S4170CTT/CLTT Series
VCC 1
I/O0 2
I/O1 3
I/O2 4
I/O3 5
VCC 6
I/O4 7
I/O5 8
I/O6 9
I/O7 10
44 VSS
43 I/O15
42 I/O14
41 I/O13
40 I/O12
39 VSS
38 I/O11
37 I/O10
36 I/O9
35 I/O8
NC
LWE
UWE
RAS
A9
A0
A1
A2
A3
VCC
13
14
15
16
17
18
19
20
21
22
32
31
30
29
28
27
26
25
24
23
(Top view)
NC
NC
CAS
OE
A8
A7
A6
A5
A4
VSS
3
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