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ST25E64EM1TR датащи(PDF) 6 Page - STMicroelectronics

номер детали ST25E64EM1TR
подробное описание детали  SERIAL EXTENDED ADDRESSING COMPATIBLE WITH I2C BUS 64K (8K x 8) EEPROM
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST25E64EM1TR датащи(HTML) 6 Page - STMicroelectronics

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background image
Symbol
Alt
Parameter
Min
Max
Unit
tCH1CH2
tR
Clock Rise Time
300
ns
tCL1CL2
tF
Clock Fall Time
300
ns
tDH1DH2
(1)
tR
SDA Rise Time
20
300
ns
tDL1DL1
(1)
tF
SDA Fall Time
20
300
ns
tCHDX
(2)
tSU:STA
Clock High to Input Transition
600
ns
tCHCL
tHIGH
Clock Pulse Width High
600
ns
tDLCL
tHD:STA
Input Low to Clock Low (START)
600
ns
tCLDX
tHD:DAT
Clock Low to Input Transition
0
µs
tCLCH
tLOW
Clock Pulse Width Low
1.3
µs
tDXCX
tSU:DAT
Input Transition to Clock Transition
100
ns
tCHDH
tSU:STO
Clock High to Input High (STOP)
600
ns
tDHDL
tBUF
Input High to Input Low (Bus Free)
1.3
µs
tCLQV
(3)
tAA
Clock Low to Next Data Out Valid
200
1000
ns
tCLQX
tDH
Data Out Hold Time
200
ns
fC
fSCL
Clock Frequency
400
kHz
tW
tWR
Write Time
10
ms
Notes: 1. Sampled only, not 100% tested.
2. For a reSTART condition, or following a write cycle.
3. The minimum value delays the falling/rising edge of SDA away from SCL = 1 in order to avoid unwanted START and/or STOP
conditions.
Table 7. AC Characteristics
(TA = –40 to 85
°C or 0 to 70 °C; VCC = 4.5V to 5.5V or 2.5V to 5.5V)
Memory Addressing. A data byte in the memory
is addressed through 2 bytes of address informa-
tion. The Most Significant Byte is sent first and the
Least significant Byte is sent after. The Least Sig-
nificant Byte addresses a block of 256 bytes, bits
b12,b11,b10,b9,b8 of the Most Significant Byte
select one block among 32 blocks (one block is 256
bytes).
Most Significant Byte
X
X
X
b12
b11
b10
b9
b8
X = Don’t Care.
Least Significant Byte
b7
b6
b5
b4
b3
b2
b1
b0
DEVICE OPERATION (cont’d)
Input Rise and Fall Times
≤ 50ns
Input Pulse Voltages
0.2VCC to 0.8VCC
Input and Output Timing Ref. Voltages 0.3VCC to 0.7VCC
AC MEASUREMENT CONDITIONS
AI00825
0.8VCC
0.2VCC
0.7VCC
0.3VCC
Figure 4. AC Testing Input Output Waveforms
6/16
ST24E64, ST25E64


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