HD66765 Datasheet, PDF (8/71 Pages) Hitachi Semiconductor – 396-channel Segment Driver with Internal RAM for 4096-color Displays

HD66765
Table 1 Pin Functional Description (cont)
Signals
Number of
Pins
I/O
Connected to Functions
OSC1,
2
OSC2
I or O Oscillation-
resistor
Connect an external resistor for R-C oscillation.
When providing clocks from outside, open OSC2.
RESET* 1
I
MPU or external Reset pin. Initializes the LSI when low. Must be reset
R-C circuit
after power-on.
VccDUM
O
Input pins
Outputs the internal V_CC level; shorting this pin sets
the adjacent input pin to the V_CC level.
GNDDUM
O
Input pins
Outputs the internal GND level; shorting this pin sets
Dummy
TEST
——
Preliminary ^{Specification 1}
I
GND
the adjacent input pin to the GND level.
Dummy pad. Must be left disconnected.
Test pin. Must be fixed at GND level.
8