93C46B Datasheet, PDF (2/12 Pages) Microchip Technology – 1K 5.0V Microwire Serial EEPROM

93C46B
1.0 ELECTRICAL
CHARACTERISTICS
1.1 Maximum Ratings*
VCC...................................................................................7.0V
All inputs and outputs w.r.t. VSS ...............-0.6V to VCC +1.0V
Storage temperature .....................................-65°C to +150°C
Ambient temp. with power applied.................-65°C to +125°C
Soldering temperature of leads (10 seconds) ............. +300°C
ESD protection on all pins................................................4 kV
*Notice: Stresses above those listed under “Maximum ratings” may
cause permanent damage to the device. This is a stress rating only and
functional operation of the device at those or any other conditions
above those indicated in the operational listings of this specification is
not implied. Exposure to maximum rating conditions for extended peri-
ods may affect device reliability.
TABLE 1-1 PIN FUNCTION TABLE
Name
CS
CLK
DI
DO
VSS
NC
VCC
Function
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
No Connect
Power Supply
TABLE 1-2 DC AND AC ELECTRICAL CHARACTERISTICS
All parameters apply over the Commercial (C)
specified operating ranges Industrial (I)
unless otherwise noted
Automotive (E)
VCC = +4.5V to +5.5V Tamb = 0°C to +70°C
VCC = +4.5V to +5.5V Tamb = -40°C to +85°C
VCC = +4.5V to +5.5V Tamb = -40°C to +125°C
Parameter
High level input voltage
Low level input voltage
Low level output voltage
High level output voltage
Input leakage current
Output leakage current
Pin capacitance
(all inputs/outputs)
Symbol
VIH
VIL
VOL
VOH
ILI
ILO
CIN, COUT
ICC read
Min.
2.0
-0.3
—
2.4
-10
-10
—
—
Max.
VCC +1
0.8
0.4
—
10
10
7
1
Units
V
V
V
V
µA
µA
pF
mA
(Note 2)
Conditions
IOL = 2.1 mA; VCC = 4.5V
IOH = -400 µA; VCC = 4.5V
VIN = VSS to VCC
VOUT = VSS to VCC
VIN/VOUT = 0 V (Notes 1 & 2)
Tamb = +25°C, FCLK = 1 MHz
Operating current
ICC write
—
1.5
mA
Standby current
ICCS
—
1
µA CS = VSS
Clock frequency
FCLK
—
2
MHz VCC = 4.5V
Clock high time
TCKH
250
—
ns
Clock low time
TCKL
250
—
ns
Chip select setup time
TCSS
50
—
ns Relative to CLK
Chip select hold time
TCSH
0
—
ns Relative to CLK
Chip select low time
TCSL
250
—
ns
Data input setup time
TDIS
100
—
ns Relative to CLK
Data input hold time
TDIH
100
—
ns Relative to CLK
Data output delay time
TPD
—
400
ns CL = 100 pF
Data output disable time
TCZ
—
100
ns CL = 100 pF (Note 2)
Status valid time
TSV
—
500
ns CL = 100 pF
TWC
—
2
ms ERASE/WRITE mode
Program cycle time
TEC
—
6
ms ERAL mode
TWL
—
15
ms WRAL mode
Endurance
—
1M
—
cycles 25°C, VCC = 5.0V, Block Mode (Note 3)
Note 1: This parameter is tested at Tamb = 25°C and FCLK = 1 MHz.
2: This parameter is periodically sampled and not 100% tested.
3: This application is not tested but guaranteed by characterization. For endurance estimates in a specific appli-
cation, please consult the Total Endurance Model which may be obtained on Microchip’s BBS or website.
DS21172D-page 2
Preliminary
© 1997 Microchip Technology Inc.