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DS2407X Datasheet

  • DS2407X

  • Dual Addressable Switch Plus 1K.Bit Memory

  • 31頁

  • DALLAS   DALLAS

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DS2407
DS2407
Dual Addressable Switch Plus
1K鈥揃it Memory
FEATURES
PIN ASSIGNMENT
TO鈥?2
DALLAS
DS2407
鈥?/div>
Open
drain PIO pins are controlled and their logic
level can be determined over 1鈥揥ire
TM
bus for
closed鈥搇oop control
TSOC PACKAGE
1
2
3
6
5
4
鈥?/div>
Dual Channel operation (TSOC package)
鈥?/div>
PIO pin channel A sink capability of 50 mA at 0.4V with
soft turn鈥搊n; channel B 8 mA at 0.4V
TOP VIEW
3.7 X 4.0 X 1.5 mm
鈥?/div>
Maximum operating voltage of 13V at PIO鈥揂, 6.5V at
PIO鈥揃
鈥?/div>
1024 bits user鈥損rogrammable OTP EPROM
鈥?/div>
7 bytes of user鈥損rogrammable status memory to con-
trol the device
鈥?/div>
Multiple
SIDE VIEW
1
2
3
DS2407s can be identified on a common
1鈥揥ire bus and be turned on or off independently of
other devices on the bus
and tested 64鈥揵it registra-
tion number (8鈥揵it family code + 48鈥揵it serial number
+ 8鈥揵it CRC tester) assures error鈥揻ree selection and
absolute identity because no two parts are alike
transfer errors
See Mech. Drawings
Section
鈥?/div>
Unique, factory鈥搇asered
1
2
3
鈥?/div>
On鈥揷hip CRC16 generator allows detection of data
鈥?/div>
Built鈥搃n
multidrop controller ensures compatibility
with other MicroLAN
TM
products
control, address, data, programming and
power to a single data pin
sor and communicates at up to 16.3k bits/s
BOTTOM VIEW
See Mech. Drawings
Section
PIN DESCRIPTION
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
TO鈥?2
Ground
Data
PIO鈥揂
鈥撯€撯€撯€?/div>
鈥撯€撯€撯€?/div>
鈥撯€撯€撯€?/div>
TSOC
Ground
Data
PIO鈥揂
V
CC
NC
PIO鈥揃
鈥?/div>
Reduces
鈥?/div>
Directly connects to a single port pin of a microproces-
鈥?/div>
Low
cost TO鈥?2 or 6鈥損in TSOC surface mount
package
range of 2.8V to 6.0V from 鈥?0擄C to +85擄C
鈥?/div>
1鈥揥ire communication operates over a wide voltage
PIO鈥揂
PIO鈥揃
鈥?/div>
Supports
Conditional Search with user鈥損rogram-
mable condition
DATA
1鈥揥IRE
PROTOCOL
鈥?/div>
V
CC
bondout for optional external supply to the device
(TSOC package only)
鈥?/div>
Hidden Mode; the device will respond only to a Match
ROM command or a Conditional Search when in this
mode.
012099 1/31

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