X60250 Datasheet, PDF (6/16 Pages) Intersil Corporation – Micro Power Programmable Voltage Reference

WRITE CYCLE TIMING
X60250
SCL
SDA
8th Bit of Last Byte
ACK
Stop
Condition
t_WC
Start
Condition
POWER-UP TIMING
Symbol
∆V_CC/∆t
t_PUR
t_PUW
Parameter
V_CC Power-up rate ⁽²⁾
Time from Power-up to Read ⁽²⁾
Time from Power-up to Write ⁽²⁾
Min.
0.2
Max.
50
1
5
Unit
V/ms
ms
ms
NONVOLATILE WRITE CYCLE TIMING
Symbol
t_WC
Parameter
Write Cycle Time ⁽⁴⁾
Min.
Typ.
Max.
Unit
5
10
ms
Notes: (1) Typical values are for T_A = 25°C and V_CC = 3.0V
(2) This parameter is guaranteed by characterization.
(3) Cb = total capacitance of one bus line in pF.
(4) t_WC is the time from a valid stop condition at the end of a write sequence to the end of the self-timed internal nonvolatile
write cycle. It is the minimum cycle time to be allowed for any nonvolatile write by the user, unless Acknowledge Polling is used.
(5) Over the specified temperature range. Temperature coefficient is measured by the box method whereby the change in
V_OUT is divided by the temperature range; in this case, -40°C to +85°C = 125°C. TCOref = [Max V(V_REF) - Min V(V_REF)] ×
10⁶ / (1.25V × 125°C)
6
FN8146.1
September 14, 2005