DS21Q43-ATN Maxim Integrated Products, DS21Q43-ATN Datasheet - Page 11

• Manufacturer Part Number: DS21Q43-ATN
• Description: IC FRAMER E1 QUAD 5V 128-TQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21Q43-ATN

• Controller Type: E1 Framer
• Interface: Parallel/Serial
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 32mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Data Bus [D0 to D7] or Address/Data Bus [AD0 to AD7]. In non-multiplexed bus operation (MUX=0),
serves as the data bus. In multiplexed bus operation (MUX=1), serves as an 8-bit multiplexed
address/data bus.
Address Bus [A0 to A5]. In non-multiplexed bus operation (MUX=0), serves as the address bus. In
multiplexed bus operation (MUX=1), these pins are not used and should be tied low.
Bus Type Select [BTS]. Strap high to select Motorola bus timing; strap low to select Intel bus timing.
This pin controls the function of the
assume the function listed in parentheses ().
Read Input [
Framer Selects [FS0 and FS1]. Selects which of the four framers to be accessed.
Chip Selects [
A6 or Address Latch Enable [ALE] (Address Strobe [AS]). In non-multiplexed bus operation
(MUX=0), serves as the upper address bit. In multiplexed bus operation (MUX=1), serves to demultiplex
the bus on a positive-going edge.
Write Input [
Positive Supply [V
Signal Ground [V
DS21Q43A FRAMER DECODE Table 1-5
RD
WR
CS
FS1
0
0
1
1
] (Data Strobe [DS]).
]. Must be low to read or write to any of the four framers.
] (Read/Write [R/
SS
DD
]. 0.0 volts.
]. 5.0 volts ± 0.5 volts.
RD
W
]).
(DS), ALE(AS), and
11 of 60
FS0
0
1
0
1
WR
(R/
W
) pins. If BTS=1, then these pins
FRAMER ACCESSED
#0
#1
#2
#3
DS21Q43A