MSC7128 Datasheet, PDF (6/27 Pages) OKI electronic componets – 5 x 7-Dot Character x 16-Digit Display Controller/Driver

¡ Semiconductor
MSC7128-xx
PIN DESCRIPTION
Symbol
V_DD1
V_DD2
V_SS
V_EE
DA
CP
CS
OSCI
OSCO
RESET
COM1
COM16
SEG1
SEG35
SEG36
TEST STEP
TEST COUNT
Type
—
—
—
—
I
I
I
I
O
I
O
O
O
I
I
Connected to
Description
Power source
V_DD1 – V_SS: Internal logic supply voltage
V_DD2 – V_EE: VF tube driving circuit supply voltage
Microcomputer
Microcomputer
Microcomputer
Serial data input from LSB (positive logic)
Shift clock input. Data is shifted at the leading edge of
the CP.
Chip select input. When the PIN is High, the serial data
transfer is inhibited.
—
RC oscillation, external RC pin. f_OSC = 250kHz at
C = 100pF and R = 47kW.
Reset input (pull-up resistor built in). When the pin is
—
Low, the internal logic is reset, and the outputs of SEG1
to SEG36 and COM1 to COM16 are Low.
VF tube grid electrode
VF tube grid electrode driving outputs. This pin can be
connected directly to the VF tube. No pull-down resistor
is required. I_OH > –30mA
VF tube 5 ¥ 7 -dot anode electrode driving outputs.
VF tube anode electrode This pin can be connected directly to the VF tube. No
pull-down resistor is required. I_OH > –2mA
VF tube cursor anode electrode driving output.
VF tube anode electrode This pin can be connected directly to the VF tube. No
pull-down resistor is required. I_OH > –10mA
—
Test mode setting input (normally open)
—
Test clock input (normally open)
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