MSC1210 Datasheet, PDF (1/11 Pages) OKI electronic componets – Clock For 1/2 Duty VFD

FEDL1210-03
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MSC1210
Clock For 1/2 Duty VFD
FEDL1210-03
This version: M_May_S._C20₁0₂0₁₀
Previous version: Jan. 1998
GENERAL DESCRIPTION
The MSC1210 is a clock for use in 1/2 duty VFD applications, featuring 4.194304 MHz crystal
controlled oscillator time base, wide ranges of power supply, and 12-hour format. The clock
correction rages are minutes, hours, and a 30-min ADJ (30-minute adjustment). The two clock
correction modes are available; one is 1Push-1ADJ correction mode, the other is 2 Hz fast advance
correction mode.
The MSC1210 is also provided with a function of 4-degree-switchable VFD luminance adjustment.
FEATURES
• 12-hour format
• Wide ranges of power supply: 4 V to 18 V (Built-in constant-voltage circuit)
• Usable for 1/2 Duty VFD
• 4.194304 MHz (crystal oscillation)
• Luminance: Switchable among 4 degrees
• Package options:
32-pin plastic SSOP
(SSOP32-P-430-1.00-K) (Product name: MSC1210GS-K)
30-pin plastic shrink DIP (SDIP30-P-400-1.778) (Product name: MSC1210SS)
BLOCK DIAGRAM
VDD 64 Hz
VCC
VSS
XT
XT
TEST
A/C
ZA
HS
MS
DIM2
DIM1
BLANK
OSCILLATOR
VDD
CONSTANT VOLTAGE CIRCUIT
V_DD
FREQUENCY DIVIDER
VDD
VDD
1/60
MINUTE COUNTER
HOUR COUNTER
LUMINANCE ADJUSTMENT GRID DECODER
VCC
1a, 3a
1b, 3b
1f, 3f
1g, 3g
2a, 2d
2b, 4b, 4c
2c, col
2f
2g
2c, col'
GR1
GR2
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