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TC55NEM208A 데이터시트(PDF) 1 Page - Toshiba Semiconductor

부품명 TC55NEM208A
상세설명  TENTATIVE TOSHIBA MOS DIGITAL INTEGRATED CIRCUIT SILICON GATE CMOS
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제조업체  TOSHIBA [Toshiba Semiconductor]
홈페이지  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

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TC55NEM208AFPN/AFTN55,70
2002-09-18
1/10
TENTATIVE
TOSHIBA MOS DIGITAL INTEGRATED CIRCUIT SILICON GATE CMOS
524,288-WORD BY 8-BIT STATIC RAM
DESCRIPTION
The TC55NEM208AFPN/AFTN is a 4,194,304-bit static random access memory (SRAM) organized as 524,288
words by 8 bits. Fabricated using Toshiba's CMOS Silicon gate process technology, this device operates from a
single 5V
± 10% power supply. Advanced circuit technology provides both high speed and low power at an operating
current of 3 mA/MHz (typ) and a minimum cycle time of 55 ns. It is automatically placed in low-power mode at 1
µA
standby current (typ) when chip enable ( CE ) is asserted high. There are two control inputs. CE is used to select
the device and for data retention control, and output enable ( OE ) provides fast memory access. This device is well
suited to various microprocessor system applications where high speed, low power and battery backup are required.
And, with a guaranteed operating range of
−40° to 85°C, the TC55NEM208AFPN/AFTN can be used in
environments exhibiting extreme temperature conditions. The TC55NEM208AFPN/AFTN is available in a
standard plastic 32-pin small-outline package (SOP) and normal and reverse pinout plastic 32-pin
thin-small-outline package (TSOP).
FEATURES
• Low-power dissipation
Operating: 15 mW/MHz (typical)
• Single power supply voltage of 5 V ± 10%
• Power down features using CE .
• Data retention supply voltage of 2.0 to 5.5 V
• Direct TTL compatibility for all inputs and outputs
• Wide operating temperature range of −40° to 85°C
• Standby Current (maximum):20 µA
PIN ASSIGNMENT (TOP VIEW)
PIN NAMES
32 PIN SOP & TSOP
A0~A18
Address Inputs
R/W
Read/Write Control
OE
Output Enable
CE
Chip Enable
I/O1~I/O8
Data Inputs/Outputs
VDD
Power (
+5 V)
GND
Ground
• Access Times (maximum):
TC55NEM208AFPN/AFTN
55
70
Access Time
55 ns
70 ns
CE Access Time
55 ns
70 ns
OE Access Time
30 ns
35 ns
• Package:
SOP32-P-525-1.27 (AFPN)
(Weight:
g typ)
TSOP II32-P-400-1.27 (AFTN) (Weight:
g typ)
1
32
2
31
3
30
4
29
5
28
6
27
7
26
8
25
9
24
10
23
11
22
12
21
13
20
14
19
15
18
16
17
VDD
A15
A17
R/W
A13
A8
A9
A11
A10
I/O8
I/O7
I/O6
I/O5
I/O4
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
GND
CE
OE
(AFPN/AFTN)


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