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A93C66 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 A93C66
기능 4K (512 X 8 OR 256 X 16) THREE-WIRE SERIAL EEPROM
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A93C66 데이터시트, 핀배열, 회로
AiT Semiconductor Inc.
www.ait-ic.com
 
A93C66
THREE-WIRE SERIAL EEPROM
4K (512 X 8 OR 256 X 16)
DESCRIPTION
FEATURES
The A93C66 provides 4096 bits of serial electrically
erasable programmable read only memory
(EEPROM) organized as 256 words of 16 bits each,
when the ORG pin is connected to VCC and 512
words of 8 bits each when it is tied to ground.
The A93C66 is enabled through the Chip Select pin
(CS), and accessed via a 3-wire serial interface
consisting of Data Input (DI), Data Output (DO), and
Shift Clock (SK). Upon receiving a Read instruction
at DI, the address is decoded and the data is clocked
Three-wire Serial Interface
VCC = 1.8V to 5.5V
Sequential Read Operation
2 MHz Clock Rate (5V) Compatibility
Self-timed Write Cycle (5 ms max)
1 Million Write Cycles guaranteed
Data Retention > 100 Years
Available in SOP8 and TSSOP8 Package 
 
ORDERING INFORMATION
out serially on the data output pin DO. The WRITE
cycle is completely self-timed and no separate erase
cycle is required before write. The Write cycle is only
Package Type Part Number
A93C66M8R
enabled when it is in the Erase/Write Enable state.
When CS is brought “high” following the initiation of a
write cycle, the DO pin outputs the Ready/Busy
status.
SOP8
A93C66M8U
M8
A93C66M8VR
A93C66M8VU
A93C66TMX8R
The A93C66 is available in SOP8 and TSSOP8
Package.
TSSOP8
TMX8
A93C66TMX8U
A93C66TMX8VR
A93C66TMX8VU
R: Tape & Reel
Note
U: Tube
V: Halogen free Package
AiT provides all RoHS products
suffix “ V “ means Halogen free Package
REV1.0
 
- MAY 2012 RELEASED -
-1-




A93C66 pdf, 반도체, 판매, 대치품
AiT Semiconductor Inc.
www.ait-ic.com
 
A93C66
THREE-WIRE SERIAL EEPROM
4K (512 X 8 OR 256 X 16)
DC ELECTRICAL CHARACTERISTICS
TA=-40℃ to +85℃, VCC=+1.8V to +5.5V (Unless otherwise specified)
Parameter
Symbo
Condition
Supply Voltage
Supply Voltage
Supply Voltage
VCC1
VCC2
VCC3
Supply Current
ICC VCC=5.0V
Read at 1.0MHz
Write at 1.0MHz
Standby Current 
ISB1 VCC=1.8V
Standby Current
Standby Current
Input Leakage NOTE1
Input Leakage NOTE2
Output Leakage
ISB2 VCC=2.7V, CS=0V
ISB3 VCC=5.0V
IIL  VIN=0V to VCC 
IIL VIN=0V to VCC 
IOL VIN=0V to VCC 
Input Low VoltageNOTE3
Input High VoltageNOTE3
Input Low VoltageNOTE3
Input High VoltageNOTE3
VIL1
2.7V ≤ VCC ≤ 5.5V
VIH1
VIL2
1.8V ≤ VCC ≤ 2.7V
VIH2
Output Low Voltage
Output High Voltage
VOL1
VOH1
2.7V ≤ VCC ≤ 5.5V
Output Low Voltage
Output High Voltage
VOL2
VOH2
1.8V ≤ VCC ≤ 2.7V
NOTE1: DICSSK input pin
NOTE2: ORG input pin
NOTE3: VIL min and VIH max are reference only and are not tested.
IOL = 2.1mA
IOH = -0.4mA
IOL=0.15mA
IOH=-100uA
MIN
1.8
2.7
4.5
-
-
-
-
-
-
-
-
-0.3
2.0
-0.5
VCCx0.7
-
2.4
-
VCC-0.2
TYP
-
-
-
0.2
0.9
-
-
-
0.1 
2.0
0.1
-
-
-
-
-
-
-
-
MAX
5.5
5.5
5.5
2.0
3.0
1.0
1.0
1.0
1.0
3.0
1.0
0.8
VCC+0.3
VCC+0.3
VCC+0.3
0.4
-
0.2
-
Unit
V
V
V
mA
μA 
μA 
μA
uA
V
V
V
V
REV1.0
 
- MAY 2012 RELEASED -
-4-

4페이지










A93C66 전자부품, 판매, 대치품
AiT Semiconductor Inc.
www.ait-ic.com
 
A93C66
THREE-WIRE SERIAL EEPROM
4K (512 X 8 OR 256 X 16)
DETAILED INFORMATION
The A93C66 is accessed via a simple and versatile three-wire serial communication interface. Device
operation is controlled by seven instructions issued by the host processor. A valid instruction starts with a
rising edge of CS and consists of a start bit (logic“1”) followed by the appropriate OP Code and the desired
memory address location.
OP
Instruction SB
Code
READ
1 10
Instruction Set of A93C66
Address
Data
x8 x16 x8 x16
A8 - A0
A7 - A0
EWEN 1 00 11XXXXXXX 11XXXXXX
ERASE 1 11
WRITE 1 01
A8 - A0
A8 - A0
A7 - A0
A7 - A0
D7 - D0 D15 - D0
ERAL
1 00 10XXXXXXX 10XXXXXX
WRAL
1 00 01XXXXXXX 01XXXXXX D7 - D0 D15 - D0
EWDS 1 00 00XXXXXXX 00XXXXXX
The X’s in the address field represent don’t care values and must be clocked.
Comments
Reads data stored in memory,
at specified address
Write enable must precede all
programming modes
Erase memory location An - A0
Writes memory location An - A0
Erases all memory locations.
Valid only at VCC = 4.5V to 5.5V
Writes all memory locations.
Valid only at VCC = 4.5V to 5.5V
Disables all programming
instructions
READ (READ)
The Read (READ) instruction contains the address code for the memory location to be read. After the
instruction and address are decoded, data from the selected memory location is available at the serial output
pin DO. Output data changes are synchronized with the rising edges of serial clock SK. It should be noted that
a dummy bit (logic “0”) precedes the 8- or 16-bit data output string.  The A93C66 supports sequential read
operations. The device will automatically increment the internal address pointer and clock out the next
memory location as long as Chip Select (CS) is held high .In this case, the dummy bit (logic “0”) will not be
clocked out between memory locations, thus allowing for a continuous steam of data to be read.
ERASE/WRITE (EWEN):
To assure data integrity, the part automatically goes into the Erase/Write Disable (EWDS) state when power
is first applied. An Erase/Write Enable (EWEN) instruction must be executed first before any programming
instructions can be carried out. Please note that once in the EWEN state, programming remains enabled until
an EWDS instruction is executed or VCC power is removed from the part.
REV1.0
 
- MAY 2012 RELEASED -
-7-

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부품번호상세설명 및 기능제조사
A93C66

4K (512 X 8 OR 256 X 16) THREE-WIRE SERIAL EEPROM

AiT Semiconductor
AiT Semiconductor

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