FUJITSU SEMICONDUCTOR DS501-00001-11v0-E DATA SHEET Memory FRAM 2 16 K (2 K 8) Bit I C MB85RC16 DESCRIPTION The MB85RC16 is an FRAM (Ferroelectric Random Access Memory) chip in a configuration of 2,048 words 8 bits, using the ferroelectric process and silicon gate CMOS process technologies for forming the nonvolatile memory cells. Unlike SRAM, the MB85RC16 is able to retain data without using a data backup battery. 12 The memory cells used in the MB85RC16 have at least 10 Read/Write operation endurance per byte, which is a significant improvement over the number of read/write operations than by other nonvolatile memory products. The MB85RC16 can provide writing in one byte units because the long writing time is not required unlike 2 Flash memory and E PROM. Therefore, the writing completion waiting sequence like a write busy state is not required. FEATURES Bit configuration : 2,048 words 8 bits Two-wire serial interface : Fully controllable by two ports: serial clock (SCL) and serial data (SDA). Operating frequency : 1 MHz (Max) 12 Read/Write endurance : 10 times/byte Data retention : 10 years ( + 85 C), 95 years ( + 55 C), over 200 years ( + 35 C) Operating power supply voltage : 2.7 V to 3.6 V Low power consumption : Operating power supply current 70 A (Typ 1 MHz) Standby current 0.1 A (Typ) Operation ambient temperature range : 40 C to + 85 C Package : 8-pin plastic SOP (FPT-8P-M02) 8-pin plastic SON (LCC-8P-M04) RoHS compliant Copyright 2011-2016 F5JITSU SEMICONDUCTOR LIMITED 2016.4MB85RC16 PIN ASSIGNMENT (TOP VIEW) (TOP VIEW) 1 8 NC VDD 1 8 VDD NC 2 7 WP NC WP NC 2 7 SCL 3 6 NC 3 6 NC SCL VSS 4 5 SDA SDA VSS 4 5 (FPT-8P-M02) (LCC-8P-M04) PIN FUNCTIONAL DESCRIPTIONS Pin Pin Name Functional Description Number No Connect pins 1 to 3 NC Leave these pins open, or connect to VDD or VSS. 4 VSS Ground pin Serial Data I/O pin This is an I/O pin which performs bidirectional communication for both memory ad- 5SDA dress and writing/reading data. It is possible to connect multiple devices. It is an open drain output, so a pull-up resistor is required to be connected to the external circuit. Serial Clock pin 6SCL This is a clock input pin for input/output serial data. Data is sampled on the rising edge of the clock and output on the falling edge. Write Protect pin When the Write Protect pin is the H level, the writing operation is disabled. When the Write Protect pin is the L level, the entire memory region can be overwritten. 7WP The reading operation is always enabled regardless of the Write Protect pin input level. The Write Protect pin is internally pulled down to VSS pin, and that is recognized as the L level (write enabled) when the pin is the open state. 8 VDD Supply Voltage pin 2 DS501-00001-11v0-E