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MAX3320TEAP+ Datasheet

  • MAX3320TEAP+

  • RS-232 Transceiver IC; Device Type:Line Driver/Receiver; No....

  • 12頁

  • Maxim   Maxim

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19-1253; Rev 0; 8/97
3V to 5.5V, up to 250kbps True RS-232 Transceiver
with 4碌A(chǔ) AutoShutdown Plus and Power-On Reset
_______________General Description
The MAX3320 combines a microprocessor (碌P) super-
visory circuit with an RS-232 transceiver. The power-on
reset performs a single function: it asserts a reset signal
whenever the V
CC
supply voltage declines below a pre-
set threshold, staying asserted for at least 100ms after
V
CC
rises above the reset threshold. The MAX3320 has
an active-low
RESET
output, which is guaranteed to be in
the correct state for V
CC
down to 1V. The reset compara-
tor is designed to ignore fast transients on V
CC
. Reset
thresholds suitable for operation with a variety of supply
voltages are available.
The MAX3320 transceivers have a proprietary low-
dropout transmitter output stage, enabling true RS-232
performance with a dual charge pump powered from a
+3V to +5.5V supply. The device requires only four
small 0.1碌F external charge-pump capacitors, and is
guaranteed to run at data rates of up to 250kbps. It
comes in the space-saving 20-pin SSOP package.
____________________________Features
o
Precise Monitoring of 5V and 3.3V Power-
Supply Voltages:
鈥?100ms (min) Power-On
RESET
Pulse Width
鈥?Power-Supply Transient Immunity
鈥?Guaranteed
RESET
Valid to V
CC
= 1V
o
4碌A(chǔ) Supply Current Achieved with
AutoShutdown Plus
o
Receivers Always Active
o
Power-On Reset Always Active
o
4碌A(chǔ) Low-Power Shutdown
o
250kbps Guaranteed Data Rate
MAX3320A/B/L/T
________________________Applications
Palmtop Computers
Portable/Battery-Powered Equipment
Hand-Held Equipment
Peripherals
Printers
______________Ordering Information
PART*
MAX3320_CAP
MAX3320_EAP
TEMP. RANGE
0擄C to +70擄C
-40擄C to +85擄C
PIN-PACKAGE
20 SSOP
20 SSOP
*
This part offers a choice of reset threshold voltage. From the
table below, select the suffix corresponding to the desired
threshold and insert it into the blank to complete the part
number.
__________________Pin Configuration
TOP VIEW
V+ 1
C2+ 2
C2- 3
V- 4
T1IN 5
T2IN 6
R1OUT 7
R2OUT 8
INVALID 9
RESET 10
20 C1+
19 V
CC
18 C1-
SUFFIX
A
B
L
T
RESET THRESHOLD
(V)
4.25
2.85
4.63
3.08
MAX3320
MAXxxx
17 GND
16 T1OUT
15 T2OUT
14 R1IN
13 R2IN
12 FORCEON
11 FORCEOFF
Typical Operating Circuit appears at end of data sheet.
SSOP
AutoShutdown Plus is a trademark of Maxim Integrated Products.
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.

MAX3320TEAP+ 產(chǎn)品屬性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 66

  • 集成電路 (IC)

  • 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器

  • -

  • 收發(fā)器

  • 2/2

  • RS232

  • 3 V ~ 5.5 V

  • 表面貼裝

  • 20-SSOP（0.209"，5.30mm 寬）

  • 20-SSOP

  • 管件

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