M255
M255 is RHYTHM GENERATOR manufactured by SGS.
MDS INTEGRATED CIRCUIT
RHYTHM GENERATOR
~ INTERNAL TEMPO OSCILLATOR , 6 PROGRAMMABLE RHYTHMS i DRIVES 5 SOUND GENERATORS
- MASK PROGRAMMABLE RESET COUNTS: 12 or 16
- DOWN BEAT OUTPUT
- EXTERNAL RESET
- LOW POWER DISSIPATION: < 100 m W
- PIN-TO-PIN PATIBLE WITH MM 5871
- PUSH-PULL OR OPEN DRAIN OUTPUTS AVAI LABLE II STANDARD CONTENT AVAILABLE ,"he M 255 is a monolithic rhythm generator specifically designed for electronic organs and other musical Instruments. Constructed on a single chip using P-channel silicon gate technology it is supplied in a 16-lead dual in-line plastic package. f_
"BSOLUTE MAXIMUM RATINGS-
"".GG
- -
V,"" fo
Ir"s,tg roil
Source supply voltage Input voltage Output current for down beat (pin 3) Output current (at other pins) Storage temperature Operating temperature
-20 to 0.3
-20 to 0.3
20 m A
3 m A
-65 to 150°C oto 70°C
- - Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other condition above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability .
... All voltages value are referred to Vss pin voltage.
DRDERING NUMBERS: M 255 Bl XX for dual in-line plastic package
- M 255 Bl AB for- standard music content
MECHANICAL DATA
Dimensions in mm ij :::::::1
Blnerse,de.~ issue dated 11/76
12/78
CONNECTION DIAGRAMS
RESET TEMPO CONTROL DOWN BEAT J VGG
VSS RHYTHM 1 RHYTHM RHYTHM
16 ~RHYTHM 4 15 ~RHVTHM 5 14 ~RHYTHM
1]
OUT...
