MSM6576 Datasheet, PDF (10/12 Pages) OKI electronic componets – Operatable at 0.9 V and 7-level Detector 4-Bit Microcontroller

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MSM6576
(Figure 1) 1.5 V Operation (Backup Flag = "1")
V_DD = 0 V
V_B = –1.5 V
(–3.0 V)
V_DD
Voltage converter
V_SS1
Voltage
V_SS2
doubler
V_EE
Internal logic
VR
Internal
status
The battery level V_SS1 is applied to the input of the
constant-voltage circuit. (V_SS2).
Operating
range
–0.9 to –3.5 V
Current
consumption ^{1.5 mA*}
Feature
When the battery level is powered down, the internal
circuit is powered directly by the battery.
* When the software duty is about 5%
(Figure 2) 1.5 V Operation (Backup Flag = "0")
V_DD = 0 V
V_B = –1.5 V
(–3.0 V)
V_DD
Voltage converter
V_SS1
Voltage
V_SS2
doubler
V_EE
Internal logic
VR
Internal
status
A doubled level of V_SS2 is applied to the input of the
constant-voltage circuit. (V_SS2).
Operating
range
–0.9 to –3.5 V
Current
consumption ^{3 mA*}
Feature
When the baftery level is powered down, a larger
operating voltage margin is gained, compared to the
case of Figure 1.
* When the software duty is about 5%
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