MAX216CWN ,Low-Power AppleTalk Interface TransceiverGeneral Description
The MAX216 transceiver is designed specifically for com-
municating with Ap ..
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MAX216CWN
Low-Power AppleTalk Interface Transceiver
19-0112; Rev. th 3/93
General Description
The MAX216 transceiver is designed specifically for com-
municating with AppleTalk'" interfaces. The MAX216 has
one differential and one single-ended driver, plus one dif-
ferential and two single-ended receivers, all of which meet
the AppleTalk transceiver specifications.
The single-ended and differential drivers have a HN out-
put voltage range when they are active, and have thermal
shutdown protection against short circuits. The drivers
remain in a high-impedance state when disabled or shut
One single-ended receiver is configured as an inverter,
and the other is configured as a buffer. The input thresh-
olds of the single-ended receivers are TTL-compatible, but
the input voltages can vary between t7V. The input
2lyL4ll2ClLflyll
Low-Power AppleTalk Interface Wansceiver
Features
. Differential DrlverlReceiver Compatible
with RS-422
' Slngle-Ended Driver/Recelver Compatible
with EUUTlA-562 and ElAlTlA-232E
' Low, 3mA Max Operational Supply Current
9113wi
. Low, 30pA Shutdown-Mode Supply Current
Ordering Information
thresholds of the differential receiver are 1200mV, and PART TEMP. RANGE PM-PACKAGE
have a common-mode range of 17V. .
The MAX216 uses only 3mA max when fully operational. MAX216CWN 0 Cto +70 C 18 Wide SO
The drivers and receivers are disabled during shutdown
mode, when the quiescent current is reduced to only
3011A.
Applications
AppleTalk Interfaces
Apple Printer Interfaces
Apple Peripheral Interface
ElA/TlA-232/562 to RS-422 Conversion
Typical Operating Circuit Pin Configuration
+ TOP VIEW
T u TXO [1‘ . El hx
T)(0 TXO. om E El TXO-
TxtR TXIV WEN [E Gl mu
DTR sto SHDN [I a sto
SE W [5: MAX215 El Ws
RXEN cpl 6 1
CR GPI I: E] (WI
HSKll-‘l LE El HSKI
stm HSKI
snxoo Ext} saxoo E El qu.
RX0r GND I E RXD+
-5V (l, NF so
"AppleTalk is a trademark of Apple Computer, Inc.
Maxim Integrated Products
MAXZ'I 6
Low-Power AppleTalk Interface Transceiver
ABSOLUTE MAXIMUM RATINGS
VCC ..i.._..-.....-.-..-FF_.__PF..l.........-._..-_...._t-_ +7V
VEE ...F-l9..F-_--..F_.__...P_..l..__lPPP_lVP_V_.FP___.PPr___FPVVP_FFr... -7V
Input Voltages
Driver Inputs .--F_..l---_-rr.V..l. -0.5V to (Vcc ' 0.5V)
Receiver Inputs ................................ 115V
Control Input Voltages .......................... -0.5V to (VCC + DEV)
Output Voltages
Driver Outputs .................................................................. i15V
Receiver Outputs ................................... -0.5V to (VCC + (LN)
Short-Circuit Duration
Driver Outputs (to VCC or VEE) __.....---.---- Continuous
Receiver Outputs (to VCC or GND) ........................ Continuous
Continuous Power Dissipation (TA = +70°C)
SO (derate 9.52mW/°C above +70°C) ...................... 762mW
Operating Temperature Range ........ .0°C to +70°C
Storage Temperature Range ............................ -65°C to +160°C
Lead Temperature (soldering, 10sec) ............................. +300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied, Exposure to
absolute maximum rating conditions for extended periods may affect device reliability,
ELECTRICAL CHARACTERISTICS - DC PARAMETERS
(Vcc = 5V I5%, VEE = RN 15%, TA = TMIN to TMAX, unless otherwise noted. See Figures 1 and 5.)
PARAMETER I SYMBOL I conorrlous l MIN TYP MAX UMTS
POWER SUPPLY
No load, SHDN = ov 1.2 3 mA
Positive Supply Current lcc No load, SHDN = Vcc 30 100 WA
Negative Supply Current lee No load 100 pA
DIFFERENTIAL DRIVER
VIL - - 0.8
TTUCMOS Input Levels TXD, TXEN, SHDN V
vIH 2.0
Input Current TXD, ‘TEN. SHDN A20 uA
Vom No load, lo = OA, V01 8.0
Differential Driver Output Voltage V
V002 R = 500, V02 2.0
33:13:52] 'loeJ1utitC, “002 R = 50n, V02 0.2 V
Common-Mode Output Voltage Voc R = 509, V02 3 V
2e,1,t,'ni-nMtenti:f/,tt'u(1oltag,, AIVOCI R = 50i2, V02 0.2 V
Output Common-Mode Range VCMR SHDN > 2.0V or power off _+10 V
Short-Circuit Current -5V s Vo 5 5V 35 450 mA
Off-State Output Current t"gN
2 MAXIM
