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AT28C16-T PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 AT28C16-T
기능 16K (2K x 8) PCMCIA Nonvolatile Attribute Memory
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AT28C16-T 데이터시트, 핀배열, 회로
Features
Ideal Rewritable Attribute Memory
Simple Write Operation
– Self-Timed Byte Writes
– On-chip Address and Data Latch for SRAM-like Write Operation
– Fast Write Cycle Time - 1 ms
– 5-Volt-Only Nonvolatile Writes
End of Write Detection
– RDY/BUSY Output
– DATA Polling
High Reliability
– Endurance: 100,000 Write Cycles
– Data Retention: 10 Years Minimum
Single 5-Volt Supply for Read and Write
Very Low Power
– 30 mA Active Current
– 100 µA Standby Current
Description
The AT28C16-T is the ideal nonvolatile attribute memory: it is a low power, 5-volt-only
byte writable nonvolatile memory (EEPROM). Standby current is typically less than
100 µA. The AT28C16-T is written like a Static RAM, eliminating complex program-
ming algorithms. The fast write cycle times of 1 ms, allow quick card reconfiguration
in-system. Data retention is specified as 10 years minimum, precluding the necessity
for batteries. Three access times have been specified to allow for varying layers of
buffering between the memory and the PCMCIA interface.
The AT28C16-T is accessed like a Static RAM for read and write operations. During a
byte write, the address and data are latched internally. Following the initiation of a
write cycle, the device will go to a busy state and automatically write the latched data
using an internal control timer. The device provides two methods for detecting the end
of a write cycle; the RDY/BUSY output and DATA POLLING of I/O7.
16K (2K x 8)
PCMCIA
Nonvolatile
Attribute
Memory
AT28C16-T
Pin Configurations
Pin Name
A0 - A10
CE
OE
WE
I/O0 - I/O7
RDY/BUSY
NC
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
Ready/Busy Output
No Connect
OE
NC
A9
A8
NC
WE
VCC
RDY/BUSY
NC
A7
A6
A5
A4
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TSOP
Top View
28 A10
27 CE
26 I/O7
25 I/O6
24 I/O5
23 I/O4
22 I/O3
21 GND
20 I/O2
19 I/O1
18 I/O0
17 A0
16 A1
15 A2
Rev. 0258C–10/98
1




AT28C16-T pdf, 반도체, 판매, 대치품
DC and AC Operating Range
Operating
Temperature (Case)
VCC Power Supply
Com.
Ind.
AT28C16-15T
0°C - 70°C
-40°C - 85°C
5V ± 10%
Operating Modes
Mode
Read
Write(2)
Standby/Write Inhibit
Write Inhibit
Write Inhibit
Output Disable
Chip Erase
Notes: 1. X can be VIL or VIH.
2. Refer to AC Programming Waveforms.
3. VH = 12.0V ± 0.5V.
CE
VIL
VIL
VIH
X
X
X
VIL
OE
VIL
VIH
X(1)
X
VIL
VIH
VH(3)
DC Characteristics
Symbol
ILI
ILO
ISB1
ISB2
ICC
VIL
VIH
VOL
VOH
Parameter
Input Load Current
Output Leakage Current
VCC Standby Current CMOS
VCC Standby Current TTL
VCC Active Current
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
Condition
VIN = 0V to VCC + 1V
VI/O = 0V to VCC
CE = VCC - 0.3V to VCC + 1.0V
CE = 2.0V to VCC + 1.0V
Com.
Ind.
f = 5 MHz; IOUT = 0 mA
Com.
Ind.
IOL = 2.1 mA
IOH = -400 µA
WE I/O
VIH DOUT
VIL DIN
X High Z
VIH
X
X High Z
VIL High Z
Min Max Units
10 µA
10 µA
100 µA
2 mA
3 mA
30 mA
45 mA
0.8 V
2.0 V
0.4 V
2.4 V
4 AT28C16-T

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AT28C16-T 전자부품, 판매, 대치품
Data Polling Waveforms
AT28C16-T
Note: 1. Data Polling AC Timing Characteristics are the same as the AC Read Characteristics.
Chip Erase Waveforms
tS = tH = 1 µsec (min.)
tW = 10 msec (min.)
VH = 12.0 ± 0.5V
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부품번호상세설명 및 기능제조사
AT28C16-T

16K (2K x 8) PCMCIA Nonvolatile Attribute Memory

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