Harman Kardon HK 990/230 Service Manual page 61

19-4323; Rev 10; 8/01
General Description
The MAX220–MAX249 family of line drivers/receivers is
intended for all EIA/TIA-232E and V.28/V.24 communica-
tions interfaces, particularly applications where ±12V is
not available.
These parts are especially useful in battery-powered sys-
tems, since their low-power shutdown mode reduces
power dissipation to less than 5µW. The MAX225,
MAX233, MAX235, and MAX245/MAX246/MAX247 use
no external components and are recommended for appli-
cations where printed circuit board space is critical.
________________________Applications
Portable Computers
Low-Power Modems
Interface Translation
Battery-Powered RS-232 Systems
Multidrop RS-232 Networks
Power
Part Supply
Number (V)
MAX220 +5
MAX222 +5
MAX223 (MAX213) +5
MAX225 +5
MAX230 (MAX200) +5
MAX231 (MAX201) +5 and
+7.5 to +13.2
MAX232 (MAX202) +5
MAX232A +5
MAX233 (MAX203) +5
MAX233A +5
MAX234 (MAX204) +5
MAX235 (MAX205) +5
MAX236 (MAX206) +5
MAX237 (MAX207) +5
MAX238 (MAX208) +5
MAX239 (MAX209) +5 and
+7.5 to +13.2
MAX240 +5
MAX241 (MAX211) +5
MAX242 +5
MAX243 +5
MAX244 +5
MAX245 +5
MAX246 +5
MAX247 +5
MAX248 +5
MAX249 +5
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
+5V-Powered, Multichannel RS-232
No. of Nominal
RS-232 No. of Cap. Value & Three- Active in Data Rate
Drivers/Rx Ext. Caps (µF)
2/2 4 0.1
2/2 4 0.1
4/5 4 1.0 (0.1)
5/5 0 —
5/0 4 1.0 (0.1)
2/2 2 1.0 (0.1)
2/2 4 1.0 (0.1)
2/2 4 0.1
2/2 0 —
2/2 0 —
4/0 4 1.0 (0.1)
5/5 0 —
4/3 4 1.0 (0.1)
5/3 4 1.0 (0.1)
4/4 4 1.0 (0.1)
3/5 2 1.0 (0.1)
5/5 4 1.0
4/5 4 1.0 (0.1)
2/2 4 0.1
2/2 4 0.1
8/10 4 1.0
8/10 0 —
8/10 0 —
8/9 0 —
8/8 4 1.0
6/10 4 1.0
Drivers/Receivers
____________________________Features
Superior to Bipolar
♦ Operate from Single +5V Power Supply
(+5V and +12V—MAX231/MAX239)
♦ Low-Power Receive Mode in Shutdown
(MAX223/MAX242)
♦ Meet All EIA/TIA-232E and V.28 Specifications
♦ Multiple Drivers and Receivers
♦ 3-State Driver and Receiver Outputs
♦ Open-Line Detection (MAX243)
PART
MAX220CPE
MAX220CSE
MAX220CWE
MAX220C/D
MAX220EPE
MAX220ESE
MAX220EWE
MAX220EJE
MAX220MJE
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
SHDN Rx
State SHDN (kbps)
No — 120
Yes — 200
✔
Yes 120
✔
Yes 120
Yes — 120
No — 120
No — 120 (64)
No — 200
No — 120
No — 200
No — 120
Yes — 120
Yes — 120
No — 120
No — 120
No — 120
Yes — 120
Yes — 120
✔
Yes 200
No — 200
No — 120
✔
Yes 120
✔
Yes 120
✔
Yes 120
✔
Yes 120
✔
Yes 120
59
Ordering Information
TEMP. RANGE PIN-PACKAGE
0°C to +70°C 16 Plastic DIP
0°C to +70°C 16 Narrow SO
0°C to +70°C 16 Wide SO
0°C to +70°C Dice*
-40°C to +85°C 16 Plastic DIP
-40°C to +85°C 16 Narrow SO
-40°C to +85°C 16 Wide SO
-40°C to +85°C 16 CERDIP
-55°C to +125°C 16 CERDIP
Selection Table
Features
Ultra-low-power, industry-standard pinout
Low-power shutdown
MAX241 and receivers active in shutdown
Available in SO
5 drivers with shutdown
Standard +5/+12V or battery supplies;
same functions as MAX232
Industry standard
Higher slew rate, small caps
No external caps
No external caps, high slew rate
Replaces 1488
No external caps
Shutdown, three state
Complements IBM PC serial port
Replaces 1488 and 1489
Standard +5/+12V or battery supplies;
single-package solution for IBM PC serial port
DIP or flatpack package
Complete IBM PC serial port
Separate shutdown and enable
Open-line detection simplifies cabling
High slew rate
High slew rate, int. caps, two shutdown modes
High slew rate, int. caps, three shutdown modes
High slew rate, int. caps, nine operating modes
High slew rate, selective half-chip enables
Available in quad flatpack package
1