PPROM16 C35/H35/S35 – Memory IP – OTP Functional Block Diagram 16x8 = 128bit • In/Out Bus Width 8bit • Supply Voltage Range 1.8V to 3.6V • Burn Voltage 3.4V at 25°C • Burn Current < 100mA • Burn Time 10µs to 20µs per bit • Read Access Time 10ns • Block Area 0.170mm Analog 2 12bytes pout • Bits Organization Address Decoder Key Parameter 4bytes DataIO State Machine Process Characteristics Block Features • Fabrication Process 0.35µm (C35/H35/S35) • Fixed memory building block • Process Option Standard and isolated • Fully static RAM operation • Storage Element PolyFuse • Latched parallel outputs • Temperature Range -40˚C to 125˚C • Synchronous I/O interface • Data Retention 10years at 125˚C • Infield programming • Load Cycles 1E9 cycles General Description The IP-block represents a one-time programmable (OTP) memory device consisting of a combination of a static RAM and a permanent storage of data using PolyFuse bit cells. During operation the data is stored in the static RAM cell. Read/Write operations are performed on the block just as for a static RAM block. There are special operating modes available to store the data permanently into the PolyFuse element (burning operation mode) and to transfer data from the PolyFuse element into the static RAM cell (load operating mode). The memory is organized in 16bytes, the bit cells of the first 4bytes are driving parallel output signals (pout), in total this results to a 32 bit parallel data bus, which can be directly used for trimming purpose. A State Machine is controlling the internal DataIO block and the Address Decoder, the load operation is done in a serial sequence by a common comparator (Analog) using an external clock signal after reset. No additional power supply for fuse operation is required; the supply has to be able to drive a current of maximum 100mA for the burning time by using an external capacitance for stabilization. For further information and requests, e-mail us at: [email protected] ___________________________________________________________________________________________________ Disclaimer: This information is provided by ams AG “AS IS” and any express or implied warranties, including, but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed. Memory IP Factsheet www.ams.com [v1-00] 2014-May