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MAX221E
±15kV ESD-Protected, +5V, 1µA, Single RS-232 Transceiver with AutoShutdown
Industry's Smallest, Low-Power, Single RS-232 Transceiver Featuring ±15kV ESD Protection
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Status
Active: In Production.
Description
The MAX221E is a +5V powered, single transmit/receive RS-232 and V.28 communications interface with automatic shutdown/wake-up features and high data rate capabilities.
The MAX221E features enhanced electrostatic discharge (ESD) protection. Both the transmitter output and receiver input are protected to ±15kV using the IEC 1000-4-2 Air-Gap Discharge Method, to ±8kV using the IEC 1000-4-2 Contact Discharge Method, and to ±15kV using the Human Body Model.
The MAX221E achieves a low 1µA supply current with Maxim's revolutionary AutoShutdown™ feature. AutoShutdown saves power without changes to the existing BIOS or operating system by entering low-power shutdown mode when the RS-232 cable is disconnected or when the transmitter of the connected peripheral is off. The MAX221E wakes up and drives the active-low INVALID pin high when an active RS-232 cable is connected, signaling the host that a peripheral is connected to the communications port.
The MAX221E is available in a 16-pin SSOP package as well as a 16-pin TSSOP that uses 50% less board space than a 16-pin SO.
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Data Sheet
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Key Features
- Single RS-232 Transceiver in a Small 16-Pin TSSOP
- ESD Protection for RS-232 I/O Pins
- ±15kV-Human Body Model
- ±8kV-IEC 1000-4-2, Contact Discharge
- ±15kV-IEC 1000-4-2, Air-Gap Discharge
- Latchup Free
- 1µA Supply Current
- AutoShutdown Saves Power without Changes to BIOS
- Guaranteed 250kbps Data Rate
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Applications/Uses
- Industrial Systems
- Maintenance/Diagnostic Ports
- Set-Top Boxes
- Telecommunications
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Key Specifications:
| RS-232 Line Driver/Receivers |
| Part Number |
VSUPPLY
(V) |
Tx |
Rx |
Data Rate
(kbps) |
ICC
(mA) |
Internal Charge Pump |
Ext. Caps |
Cap. Value
(µF) |
ESD Protect.
(±kV) |
Rx Active in Shutdn |
Package/Pins |
Budgetary Price |
| min |
typ |
nom |
See Notes |
| MAX221E |
5 |
1 |
1 |
250 |
5 |
Yes |
4 |
0.1 |
15 |
1 |
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$1.29 @1k |
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See All RS-232 Line Driver/Receivers (152)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
Application Notes
Product Guides
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX221ECAE
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Active |
SSOP;16 pin;50 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0106 (PDF)
Use pkgcode/variation: A16-2*
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0°C to +70°C
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See data sheet
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| MAX221ECAE+
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Active |
SSOP;16 pin;50 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0106 (PDF)
Use pkgcode/variation: A16+2*
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0°C to +70°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX221ECAE+T
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Active |
SSOP;16 pin;50 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0106 (PDF)
Use pkgcode/variation: A16+2*
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0°C to +70°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX221ECAE-T
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Active |
SSOP;16 pin
Land Pattern: Not Available
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0°C to +70°C
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See data sheet
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| MAX221ECUE
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Active |
TSSOP;16 pin;33.4 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0117 (PDF)
Use pkgcode/variation: U16-2*
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0°C to +70°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX221ECUE+
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Active |
TSSOP;16 pin;33.4 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0117 (PDF)
Use pkgcode/variation: U16+2*
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0°C to +70°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX221ECUE+T
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Active |
TSSOP;16 pin;33.4 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0117 (PDF)
Use pkgcode/variation: U16+2*
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0°C to +70°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX221ECUE-T
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Active |
TSSOP;16 pin;33.4 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0117 (PDF)
Use pkgcode/variation: U16-2*
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0°C to +70°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX221EEAE
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Active |
SSOP;16 pin;50 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0106 (PDF)
Use pkgcode/variation: A16-2*
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-40°C to +85°C
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See data sheet
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| MAX221EEAE+
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Active |
SSOP;16 pin;50 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0106 (PDF)
Use pkgcode/variation: A16+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX221EEAE+T
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Active |
SSOP;16 pin;50 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0106 (PDF)
Use pkgcode/variation: A16+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX221EEAE-T
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Active |
SSOP;16 pin;50 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0106 (PDF)
Use pkgcode/variation: A16-2*
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-40°C to +85°C
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See data sheet
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| MAX221EEUE
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Active |
TSSOP;16 pin;33.4 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0117 (PDF)
Use pkgcode/variation: U16-2*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX221EEUE+
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Active |
TSSOP;16 pin;33.4 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0117 (PDF)
Use pkgcode/variation: U16+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX221EEUE+T
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Active |
TSSOP;16 pin;33.4 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0117 (PDF)
Use pkgcode/variation: U16+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX221EEUE-T
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Active |
TSSOP;16 pin;33.4 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0117 (PDF)
Use pkgcode/variation: U16-2*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Notes and Comments
Available in a 16-pin TSSOP package
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| MAX221 |
+5V, 1µA, Single RS-232 Transceiver with AutoShutdown |
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+5V, 1µA, Single RS-232 Transceiver with AutoShutdown |
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-1527
Rev 0;
1999-08-01
This page last modified: 2007-07-23
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