OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

X4643S8I-2.7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21
13
FN8123.0
March 29, 2005
Figure 15. X4643/5 Addressing
Operational Notes
The device powers-up in the following state:
– The device is in the low power standby state.
– The WEL bit is set to ‘0’. In this state it is not possi-
ble to write to the device.
– SDA pin is the input mode.
– RESET
/RESET Signal is active for t
PURST
.
Data Protection
The following circuitry has been included to prevent
inadvertent writes:
– The WEL bit must be set to allow write operations.
–T
he proper clock count and bit sequence is required
prior to the stop bit in order to start a nonvolatile
write cycle.
– A three step sequence is required before writing into
the Control Register to change Watchdog Timer or
block lock settings.
– The WP pin, when held HIGH, and WPEN bit at logic
HIGH will prevent all writes to the Control Register.
– Communication to the device is inhibited while
RESET
/RESET is active and any in-progress com-
munication is terminated.
– Block Lock bits can protect sections of the memory
array from write operations.
SYMBOL TABLE
R/WS0S100101
Slave Address Byte
Device Identifier Device Select
A8A9A10A11A12
000
Word Address Byte 0–64K
High Order Word Address
(X6) (X5) (X4) (X3) (X2)
A0A1A2
Word Address Byte 0 for all options
Low Order Word Address
(Y2) (Y1) (Y0)
A3
(Y3)
A4
(Y4)
A5
(Y5)
A6
(X0)
A7
(X1)
D0D1D2D3D4D5D6D7
Data Byte for all options
WAVEFORM INPUTS OUTPUTS
Must be
steady
Will be
steady
May change
from LOW
to HIGH
Will change
from LOW
to HIGH
May change
from HIGH
to LOW
Will change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
Changing:
State Not
Known
N/A Center Line
is High
Impedance
X4643, X4645
14
FN8123.0
March 29, 2005
ABSOLUTE MAXIMUM RATINGS
Temperature under bias.................... -65°C to +135°C
Storage temperature ......................... -65°C to +150°C
Voltage on any pin with respect to VSS... -1.0V to +7V
D.C. output current...............................................5mA
Lead temperature (soldering, 10 seconds)........ 300°C
COMMENT
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only; functional operation of the
device (at these or any other conditions above those
listed in the operational sections of this specification) is
not implied. Exposure to absolute maximum rating con-
ditions for extended periods may affect device reliability.
D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.)
Notes: (1) The device enters the Active state after any start, and remains active until: 9 clock cycles later if the Device Select Bits in the Slave
Address Byte are incorrect; 200ns after a stop ending a read operation; or t
WC
after a stop ending a write operation.
(2) The device goes into Standby: 200ns after any stop, except those that initiate a nonvolatile write cycle; t
WC
after a stop that initiates a non-
volatile cycle; or 9 clock cycles after any start that is not followed by the correct Device Select Bits in the Slave Address Byte.
(3) V
IL
Min. and V
IH
Max. are for reference only and are not tested.
Symbol Parameter
V
CC
= 2.7 to 5.5V
Unit Test ConditionsMin Max
I
CC1
(1)
Active Supply Current Read 1.0 mA V
IL
= V
CC
x 0.1, V
IH
= V
CC
x 0.9
f
SCL
= 400kHz, SDA = Commands
I
CC2
(1)
Active Supply Current Write 3.0 mA
I
SB1
(2)
Standby Current DC (WDT off) 1 µA V
SDA
= V
SCL
= V
SB
Others = GND or V
SB
I
SB2
(2)
Standby Current DC (WDT on) 20 µA V
SDA
= V
SCL
= V
SB
Others = GND or V
SB
I
LI
Input Leakage Current 10 µA V
IN
= GND to V
CC
I
LO
Output Leakage Current 10 µA V
SDA
= GND to V
CC
Device is in Standby
(1)
V
IL
(3)
Input LOW Voltage -0.5 V
CC
x 0.3 V
V
IH
(3)
Input nonvolatile V
CC
x 0.7 V
CC
+ 0.5 V
V
HYS
Schmitt Trigger Input Hysteresis
Fixed input level
V
CC
related level
0.2
.05 x V
CC
V
V
V
OL
Output LOW Voltage 0.4 V I
OL
= 3.0mA (2.7-5.5V)
RECOMMENDED OPERATING CONDITIONS
Temperature Min. Max.
Commercial 0°C 70°C
Industrial -40°C +85°C
Option Supply Voltage Limits
-2.7 and -2.7A 2.7V to 5.5V
Blank and -4.5A 4.5V to 5.5V
X4643, X4645
15
FN8123.0
March 29, 2005
CAPACITANCE (T
A
= 25°C, f = 1.0 MHz, V
CC
= 5V)
Notes: (4) This parameter is periodically sampled and not 100% tested.
EQUIVALENT A.C. LOAD CIRCUIT A.C. TEST CONDITIONS
A.C. CHARACTERISTICS (Over recommended operating conditions, unless otherwise specified)
Notes: (1) Typical values are for T
A
= 25°C and V
CC
= 5.0V
(2) Cb = total capacitance of one bus line in pF.
Symbol Parameter Max. Unit Test Conditions
C
OUT
(4)
Output Capacitance (SDA, RST/RST)8pFV
OUT
= 0V
C
IN
(4)
Input Capacitance (SCL, WP) 6 pF V
IN
= 0V
SDA
or
RESET
1533Ω
100pF
5V
For V
OL
= 0.4V
and I
OL
= 3 mA
Input pulse levels 0.1V
CC
to 0.9V
CC
Input rise and fall times 10ns
Input and output timing levels 0.5V
CC
Output load Standard output load
Symbol Parameter Min. Max. Unit
f
SCL
SCL Clock Frequency 0 400 kHz
t
IN
Pulse width Suppression Time at inputs 50 ns
t
AA
SCL LOW to SDA Data Out Valid 0.1 0.9 µs
t
BUF
Time the bus free before start of new transmission 1.3 µs
t
LOW
Clock LOW Time 1.3 µs
t
HIGH
Clock HIGH Time 0.6 µs
t
SU:STA
Start Condition Setup Time 0.6 µs
t
HD:STA
Start Condition Hold Time 0.6 µs
t
SU:DAT
Data In Setup Time 100 ns
t
HD:DAT
Data In Hold Time 0 µs
t
SU:STO
Stop Condition Setup Time 0.6 µs
t
DH
Data Output Hold Time 50 ns
t
R
SDA and SCL Rise Time 20 + .1Cb 300 ns
t
F
SDA and SCL Fall Time 20 + .1Cb 300 ns
t
SU:WP
WP Setup Time 0.6 µs
t
HD:WP
WP Hold Time 0 µs
Cb Capacitive load for each bus line 400 pF
X4643, X4645
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21

X4643S8I-2.7

Mfr. #:
Buy X4643S8I-2.7
Manufacturer:
Renesas / Intersil
Description:
IC CPU SUPRV 64K EE RST LO 8SOIC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet