RDD104

Prescaler/Multivibrator - SELECTABLE 4 DECADE CMOS DIVIDER -FEATURES:
• Selectable Divide by 10 or 100 or 1,000 or 10,000
• Clock Input Shaping Network Accepts
Fast or Slow Edge Inputs
• Active Oscillator Network for External Crystal
• Square Wave Output
• Output TTL Compatible at +4.5V Operation
• High Noise Immunity
• Reset
• All Inputs Protected
• +4.5V to +15V Operation (VDD-VSS)
• Low Power Dissipaton
• RDD104 (DIP); RDD104-S (SOIC) - See Figure 1
DC ELECTRICAL CHARACTERISTICS:
(All voltages referenced to Vss)
VDD -40°C +25°C +85°C UNIT

Quiescent Device Current 4.5V 10 10 300 uA Max
10V 20 20 600 uA Max
Output Voltage, Low Level 4.5V 0.01 0.01 0.05 V Min
10V 0.01 0.01 0.05 V Min
High Level 4.5V 4.49 4.49 4.45 V Max
10V 9.99 9.99 9.95 V Max
Input Noise Immunity 4.5V 1.3 1.3 1.3 V Min
(Low and High) 10V 3.0 3.0 3.0 V Min
Output Drive Current:
N-Channel Sink Current 4.5V 2.3 1.9 1.6 mA Min
(VOUT = Vss + 0.4V) 10V 5.0 4.0 3.5 mA Min
P-Channel Source Current 4.5V 1.1 0.95 0.8 mA Min
(VOUT = VDD - 1V) 10V 2.5 2.1 1.8 mA Min
Input Capacitance (any input) 5.0 pF Max
DESCRIPTION OF OPERATION:
The RDD104 is a CMOS four decade
divider circuit that advances on each negative
transition of the input clock pulse. When the reset
input is high the circuit is cleared to zero. The
clock input is applied to a three stage inverting
amplifier network whose output is brought out so
that an external crystal network can be used to
form an oscillator circuit. If the clock output is not
used,the amplifier acts as an input buffer. Two
select inputs are provided which enables the circuit
to divide by 10, 100, 1,000 or 10,000. - MAXIMUM RATINGS:
PARAMETER SYMBOL VALUE UNIT
Storage Temperature TSTG -65 to +150 °C
Operating Temperature TA -40 to +85 °C
DC Supply Voltage (VDD - VSS) +18 V
Voltage at any input VIN VSS - 0.5 to VDD + 0.5 V