MT8889CS1 Zarlink, MT8889CS1 Datasheet - Page 24

• Manufacturer Part Number: MT8889CS1
• Description: DTMF TXRX 3.579MHz CMOS 5V 20-Pin SOIC Tube
• Manufacturer: Zarlink

Specifications of MT8889CS1

• Package: 20SOIC
• Operating Frequency: 3.579 MHz
• Typical Supply Current: 7 mA
• Typical Operating Supply Voltage: 5 V
• Minimum Operating Supply Voltage: 4.75 V
• Maximum Operating Supply Voltage: 5.25 V

MT8889C
Data Sheet
ALE*
t
CSS
WR
t
DSW
t
t
AS
AH
t
DHW
P0*
(RS0,
Data
A0-A7
D0-D3)
P2 *
A8-A15 Address
(Addr)
t
CSH
CS = ALE.Addr
* microprocessor pins
Figure 22 - 8031/8051/8085 Write Timing Diagram
24
Zarlink Semiconductor Inc.