The DS28E04-100 is a 4096-bit, 1-Wire® EEPROM chip with seven address inputs. The address inputs are directly mapped into the 1-Wire 64-bit Device ID
Number to easily enable the host system to identify the physical location or functional association of the DS28E04-100 in a multidevice 1-Wire network environment. The 4096-bit EEPROM array is configured as 16 pages of 32 bytes with a 32-byte scratchpad to perform write operations. EEPROM memory pages can be individually write protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. In addition to the memory, the DS28E04-100 has two general-purpose I/O ports that can be used for input or to generate level and/or pulse outputs. Activity registers also capture port
activity for state change monitoring. The DS28E04-100 communicates over the single-contact 1-Wire bus. The communication follows the standard Dallas
Semiconductor 1-Wire protocol.
Key Features
Applications/Uses
4096 bits of EEPROM Memory Partitioned into 16 Pages of 256 Bits
Seven Address Inputs for Physical Location Configuration
Two General-Purpose PIO Pins with Pulse-Generation Capability
Individual Memory Pages can be Permanently Write-Protected or put in OTP EPROM Emulation
Mode ("Write to 0")
Communicates to Host with a Single Digital Signal at 15.3kbps or 111kbps Using 1-Wire
Protocol
Parasitic or VCC Powered
Conditional Search Based on PIO Status or PIO
Activity
Switchpoint Hysteresis and Filtering to Optimize
Performance in the Presence of Noise
Reads and Writes Over a Wide 2.8V to 5.25V
Voltage Range from -40°C to +85°C
16-Pin, 150-mil SO Package
Access Products, Optical Network Units, and PBXs
Accessory/PCB Identification
Autoconfiguration of Modular Systems such as Central-Office Switches, Cellular Base Stations, Access Products, Optical Network Units, and PBXs
Autoconfiguration of Modular Systems such as Central-Office Switches, Cellular Base Stations, Access Products, Optical Network Units, and PBXs
* 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.
Devices:
1-4 of 4
DS28E04-100
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Status
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free? Materials Analysis
DS28E04S-100/T
N/A
No Longer Available
SOIC(N);16 pin;62 mm²
Outline Drawing: 21-0041 (PDF)
Land Pattern: 90-0097 (PDF)
Use pkgcode/variation: S16-1*
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