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M28C17A PDF даташит

Спецификация M28C17A изготовлена ​​​​«STMicroelectronics» и имеет функцию, называемую «16 Kbit (2K x 8) Parallel EEPROM».

Детали детали

Номер произв M28C17A
Описание 16 Kbit (2K x 8) Parallel EEPROM
Производители STMicroelectronics
логотип STMicroelectronics логотип 

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M28C17A Даташит, Описание, Даташиты
M28C16A
M28C17A
16 Kbit (2Kb x8) Parallel EEPROM
FAST ACCESS TIME:
– 150ns at 5V
– 250ns at 3V
SINGLE SUPPLY VOLTAGE:
– 5V ± 10% for M28C16A and M28C17A
– 2.7V to 3.6V for M28C16-xxW
LOW POWER CONSUMPTION
FAST WRITE CYCLE
– 32 Bytes Page Write Operation
– Byte or Page Write Cycle: 5ms
ENHANCED END OF WRITE DETECTION
– Ready/Busy Open Drain Output
– Data Polling
– Toggle Bit
PAGE LOAD TIMER STATUS BIT
HIGH RELIABILITY SINGLE POLYSILICON,
CMOS TECHNOLOGY
– Endurance >100,000 Erase/Write Cycles
– Data Retention >40 Years
JEDEC APPROVED BYTEWIDE PIN OUT
28
1
PDIP28 (BS)
PLCC32 (KA)
28
1
SO28 (MS)
300 mils
TSOP28 (NS)
8 x13.4mm
Figure 1. Logic Diagram
DESCRIPTION
The M28C16A and M28C17Aare 2K x8 low power
Parallel EEPROM fabricatedwith STMicroelectron-
ics proprietarysingle polysilicon CMOS technology.
The device offers fast access time with low power
dissipation and requires a 5V or 3V power supply.
VCC
11
A0-A10
8
DQ0-DQ7
Table 1. Signal Names
A0-A10
Address Input
DQ0-DQ7 Data Input / Output
W Write Enable
E Chip Enable
G Output Enable
RB Ready / Busy
VCC Supply Voltage
VSS Ground
W M28C16A
M28C17A
E
RB
G
VSS
AI02109
August 1998
1/19









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M28C17A Даташит, Описание, Даташиты
M28C16A, M28C17A
Figure 2A. DIP Pin Connections
Figure 2B. LCC Pin Connections
RB
NC
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
1 28
2 27
3 26
4 25
5 24
6 23
7 22
M28C17A
8 21
9 20
10 19
11 18
12 17
13 16
14 15
VCC
W
DU
A8
A9
NC
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
AI02110
Warning: NC = Not Connected, DU = Don’t Use.
Figure 2C. SO Pin Connections
A6
A5
A4
A3
A2
A1
A0
NC
DQ0
9
1 32
M28C16A
M28C17A
17
A8
A9
NC
NC
25 G
A10
E
DQ7
DQ6
AI02111
Warning: NC = Not Connected, DU = Don’t Use.
Note: 1. Pin 2 is either RB for M28C17A or NC
for M28C16A.
Figure 2D. TSOP Pin Connections
RB
NC
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
1
2
3
4
5
6
7
M28C17A
8
9
10
28
27
26
25
24
23
22
21
20
19
11 18
12 17
13 16
14 15
AI02112
VCC
W
DU
A8
A9
NC
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
Warning: NC = Not Connected, DU = Don’t Use.
2/19
G
NC
A9
A8
DU
W
VCC
RB
NC
A7
A6
A5
A4
A3
22 21
28 15
M28C16A
1 14
78
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
VSS
DQ2
DQ1
DQ0
A0
A1
A2
AI02113
Warning: NC = Not Connected, DU = Don’t Use.









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M28C17A Даташит, Описание, Даташиты
M28C16A, M28C17A
Table 2. Absolute Maximum Ratings (1)
Symbol
Parameter
Value
Unit
TA Ambient Operating Temperature (2)
– 40 to 85
°C
T STG
Storage Temperature Range
– 65 to 150
°C
VCC Supply Voltage
– 0.3 to 6.5
V
VIO Input/Output Voltage
– 0.3 to VCC +0.6
V
VI Input Voltage
– 0.3 to 6.5
V
VESD Electrostatic Discharge Voltage (Human Body model)
3000
V
Notes: 1. Except for the rating ”Operating Temperature Range”, stresses above those listed in the Table ”Absolute Maximum Ratings”
may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other
conditions above those indicated in the Operating sections of this specification is not i mplied. Exposure to Absolute Maximum
Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other
relevant quality documents.
2. Depends on range.
Table 3. Operating Modes
Mode
Read
Write
Standby / Write Inhibit
Write Inhibit
Write Inhibit
Output Disable
Note: X = VIH or VIL
E GW
VIL VIL VIH
VIL VIH VIL
VIH X
X
X X VIH
X VIL X
X VIH X
DQ0 - DQ7
Data Out
Data In
Hi-Z
Data Out or Hi-Z
Data Out or Hi-Z
Hi-Z
DESCRIPTION (cont’d)
The circuit has been designed to offer a flexible
microcontroller interface featuring both hardware
and software handshakingmode with Ready/Busy,
Data Polling and Toggle Bit. The M28C16A/17A
supports 32 byte page write operation.
PIN DESCRITPION
Addresses (A0-A10). The address inputs select
an 8-bit memory location during a read or write
operation.
Chip Enable (E). The chip enable input must be
low to enable all read/write operations. When Chip
Enable is high, power consumption is reduced.
Output Enable (G). The Output Enable input con-
trols the data output buffers and is used to initiate
read operations.
Data In/ Out (DQ0 - DQ7). Data is written to or read
from the M28C16A/17A through the I/O pins.
Write Enable (W). The Write Enable input controls
the writing of data to the M28C16A/17A.
Ready/Busy (RB). Ready/Busy is an open drain
output that can be used to detect the end of the
internal write cycle. Ready/Busy is available for the
M28C17A in PDIP, PLCC and SO packages, and
for the M28C16A in TSOP only.
OPERATION
In order to prevent data corruption and inadvertent
write operations during power-up, a Power On
Reset (POR) circuit resets all internal programming
cicuitry. Access to the memory in write mode is
allowed after a power-up as specified in Table 7.
Read
The M28C16A/17Ais accessed like a static RAM.
When E and G are low with W high, the data
addressed is presented on the I/O pins. The I/O
pins are high impedancewhen either G or E is high.
3/19










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