tc83230-0015 TOSHIBA Semiconductor CORPORATION, tc83230-0015 Datasheet - Page 26

• Manufacturer Part Number: tc83230-0015
• Description: Tc83230-0015 Single-chip Cmos Lsi For Calculators With Printers
• Manufacturer: TOSHIBA Semiconductor CORPORATION

The Proposal of Outer Circuit for Tax Rate Holding with Back-Up Battery.
HOLD pin is pulled down in the LSI, but normally pulled up to V
RESET pin is pulled up to V
Note 10: V
(1)
(2)
(3)
Note 11: V
V
Setting POWER SW to ON, V
Then calculator operates normally.
Setting POWER SW from ON to OFF, V
Under this connection, TAX RATE is held.
Setting POWER SW to ON, V
Then calculator operates normally with TAX RATE to be held.
1
2
= +3 V: Battery supply
= +5 V: DC supply
exhaustion of battery and abnormal operation.
1
(battery) should be supplied to the circuit after V
DD
.
2
2
is supplied to V
is supplied to V
1
is supplied to V
26
DD
DD
pin, and also to HOLD pin.
pin, and also to HOLD pin.
2
(DC) supply, because of prevention from
DD
DD
.
pin and V
SS
is supplied to HOLD pin.
TC83230-0015
2003-03-04