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ST93CS66 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. ST93CS66
Description  4K 256 x 16 SERIAL MICROWIRE EEPROM
Download  16 Pages
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST93CS66 Datasheet(HTML) 4 Page - STMicroelectronics

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background image
Symbol
Alt
Parameter
Test Condition
Min
Max
Unit
tPRVCH
tPRES
Protect Enable Valid to Clock High
50
ns
tWVCH
tPES
Write Enable Valid to Clock High
50
ns
tSHCH
tCSS
Chip Select High to Clock High
50
ns
tDVCH
tDIS
Input Valid to Clock High
100
ns
tCHDX
tDIH
Clock High to Input Transition
100
ns
tCHQL
tPD0
Clock High to Output Low
500
ns
tCHQV
tPD1
Clock High to Output Valid
500
ns
tCLPRX
tPREH
Clock Low to Protect Enable Transition
0
ns
tSLWX
tPEH
Chip Select Low to Write Enable Transition
250
ns
tCLSL
tCSH
Clock Low to Chip Select Transition
0
ns
tSLSH
tCS
Chip Select Low to Chip Select High
Note 1
250
ns
tSHQV
tSV
Chip Select High to Output Valid
500
ns
tSLQZ
tDF
Chip Select Low to Output Hi-Z
300
ns
tCHCL
tSKH
Clock High to Clock Low
Note 2
250
ns
tCLCH
tSKL
Clock Low to Clock High
Note 2
250
ns
tW
tWP
Erase/Write Cycle time
10
ms
fC
fSK
Clock Frequency
0
1
MHz
Notes: 1. Chip Select must be brought low for a minimum of 250 ns (tSLSH) between consecutive instruction cycles.
2. The Clock frequency specification calls for a minimum clock period of 1
µs, therefore the sum of the timings tCHCL +tCLCH
must be greater or equal to 1
µs. For example, if tCHCL is 250 ns, then tCLCH must be at least 750 ns.
Table 5. AC Characteristics (TA = 0 to 70
° or, –40 to 85°C; VCC = 3V to 5.5V for ST93CS66 and
VCC = 2.5V to 5.5V for ST93CS67)
PRE
W
C
S
D
OP CODE
OP CODE
START
START
OP CODE INPUT
tCHDX
tDVCH
tSHCH
tCLCH
tCHCL
tWVCH
tPRVCH
AI00887
Figure 4. Synchronous Timing, Start and Op-Code Input
4/16
ST93CS66, ST93CS67


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