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PDF MAX562 Data sheet ( Hoja de datos )
| Número de pieza | MAX562 | |
| Descripción | Complete 230kbps / 2.7V to 5.25V Serial Interface for Notebook Computers | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX562 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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19-0144; Rev. 0; 9/93
Complete 230kbps, 2.7V to 5.25V
Serial Interface for Notebook Computers
_______________General Description
The MAX562 is designed specifically for notebook and
palmtop computers that need to transfer data quickly.
It runs at data rates up to 230kbps, and has a guaran-
teed 4V/µs slew rate. This device meets the new
EIA/TIA-562 standard that guarantees compatibility with
RS-232 interfaces.
The MAX562 has low-power shutdown and keep-awake
modes. In keep-awake mode, the transmitters are dis-
abled but all receivers are active, allowing unidirection-
al communication. In shutdown mode, the entire chip is
disabled and all outputs are in a high-impedance state.
The MAX562 is available in a standard 28-pin SO pack-
age, and in a smaller footprint shrink small-outline
package (SSOP).
________________________Applications
Palmtop, Notebook, and Subnotebook
Computers
Peripherals
Battery-Powered Equipment
__________Typical Operating Circuit
0.33µF
0.33µF
+2.7V TO
2 C1A 5 3 C1B 4 MAX562
+5.25V
1
C1A+ C1A- C1B+ C1B-
VCC VOLTAGE
V+
28
INPUT
0.33µF
25
DOUBLER/TRIPLER
0.33µF
C2+
C2
24 C2-
VOLTAGE
INVERTER
V- 26
C3 0.68µF
C4 0.33µF
11
T1IN
T1
18
T1OUT
CMOS
INPUTS
T2IN 12
T3IN 13
T2
T3
17
T2OUT
EIA/TIA
-562
OUTPUTS
16 T3OUT
R1OUT 6
R2OUT 7
CMOS
OUTPUTS
R3OUT
R4OUT
8
9
R5OUT
EN
10
14
R1
R2
R3
R4
R5
GND
27
23 R1IN
5k
22 R2IN
5k
21 R3IN
5k
20 R4IN
5k
EIA/TIA
-562
INPUTS
19 R5IN
5k 15 SHDN
____________________________Features
o 230kbps Data Rate, LapLink™ Compatible
o Operates from a 2.7V to 5.25V Supply
o Designed for EIA/TIA-562 and EIA/TIA-232 Applications
o Guaranteed 4.0V/µs Slew Rate
o 3 Drivers, 5 Receivers
o Flow Through Pinout
o Low-Power Shutdown and Keep-Awake Modes
o Low-Cost, Surface-Mount External Capacitors
______________Ordering Information
PART
MAX562CWI
MAX562CAI
MAX562C/D
MAX562EWI
MAX562EAI
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
* Contact factory for dice specifications.
PIN-PACKAGE
28 SO
28 SSOP
Dice*
28 SO
28 SSOP
__________________Pin Configuration
TOP VIEW
VCC 1
C1A+ 2
C1B+ 3
C1B- 4
C1A- 5
R1OUT 6
R2OUT 7
R3OUT 8
R4OUT 9
R5OUT 10
T1IN 11
T2IN 12
T3IN 13
EN 14
MAX562
28 V+
27 GND
26 V-
25 C2+
24 C2-
23 R1IN
22 R2IN
21 R3IN
20 R4IN
19 R5IN
18 T1OUT
17 T2OUT
16 T3OUT
15 SHDN
SO/SSOP
™ LapLink is a registered trademark of Traveling Software, Inc.
________________________________________________________________ Maxim Integrated Products 1
Call toll free 1-800-998-8800 for free samples or literature.
1 page  
Complete 230kbps, 2.7V to 5.25V
Serial Interface for Notebook Computers
______________________________________________________________Pin Description
PIN
28
2, 5
3, 4
6, 7, 8, 9, 10
11, 12, 13
14
15
16, 17, 18
19, 20, 21, 22, 23
24, 25
26
27
1
NAME
V+
C1A+, C1A-
C1B+, C1B-
R_OUT
T_IN
EN
SHDN
T_OUT
R_IN
C2+, C2-
V-
GND
VCC
FUNCTION
Positive charge-pump output, typically 5.8V
Terminals for positive charge-pump capacitor
Terminals for positive charge-pump capacitor
TTL/CMOS Receiver Outputs.
TTL/CMOS Driver Inputs
Receiver Enable, see Shutdown and Enable Control section.
Shutdown Control, see Shutdown and Enable Control section.
EIA/TIA-562 Driver Outputs
EIA/TIA-562 Receiver Inputs
Terminals for negative charge-pump capacitor
Negative charge-pump output, typically -5.2V
Ground
+2.7V to +5.25V Supply Voltage
+3V
INPUT
OUTPUT
tPLHT
0V
VOH
0V
VOL
tPHLT
Figure 1. Transmitter Propagation Delay Timing
INPUT
OUTPUT
tPHLR
tPHLS
+3V
50%
50%
50%
0V
VCC
50%
GND
tPLHR
tPLHS
Figure 2. Receiver Propagation Delay Timing
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MAX562.PDF ] | |
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