BR93LC56F Rohm, BR93LC56F Datasheet
BR93LC56F
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BR93LC56F Summary of contents
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... Memory ICs 2,048-Bit Serial Electrically Erasable PROM BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV • Features • Low power CMOS technology • 128 16 bit configuration • 2.7V to 5.5V operation • Low power dissipation – 3mA (max.) active current: 5V – (max.) standby current: 5V • Auto increment for efficient data bump • ...
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... Reduced by 3.0mW for each increase over 25 C. • Recommended operating conditions (Ta = 25°C) Parameter Symbol Writing Power supply V CC voltage Reading Input voltage BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV Power supply voltage detector Write disable Address Address 7bit buffer decoder Data 16bit register amplifier ...
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... V IH Output low level voltage V OL Output high level voltage V OH Input leakage current I LI Output leakage current I LO Operating current I CC2 dissipation 2 Standby current I SB BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV Min. Typ. Max. Unit – 0.3 — 0.8 V 2.0 — 0 — — 0.4 V 2.4 — ...
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... DI hold time Data "1" output delay time Data "0" output delay time Time from CS to output confirmation Time from CS to output High impedance Write cycle time 4 BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV Command 1 Read (READ) Write enabled (WEN) 2 Write (WRITE) Write all addresses (WRAL) ...
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... CS setup time DI setup time CS hold time DI hold time Data "1" output delay time Data "0" output delay time Time from CS to output High impedance Not designed for radioactive rays. BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV Symbol Min. Typ. Max. f — — ...
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... Also, DO must HIGH-Z state when CS is LOW. • After the completion of each mode, make sure that CS is set to LOW, to reset the internal circuit, before changing modes. 6 BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV t t ...
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... CS is held in HIGH state during automatic incrementing BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV off. However, read commands can be used in either the write enable or write disable state. (6) Write (Figure 4) This command writes the input 16-bit data (D15 to D0) to the specified address (A6 to A0). Actual writing of ...
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... CS = HIGH. (Caution is especially important when common input ports are used.) This applies to all of the write commands. (7) All address write (Figure 5) With this command, the input 16-bit data is written simultaneously to all of the addresses (128 words BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV D15 D14 1 0 Fig ...
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... Canceled by setting CS LOW Cannot be canceled by any method the designated address is not secured OFF ( BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV Operating code Address 2 bits 8 bits Cancel can be performed for the entire read mode space Cancellation method: CS LOW Operating code Address ...
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... To avoid this, make sure CS is set to LOW before turning off the power supply. 10 BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV To prevent erroneous writing, these ICs are equipped with a POR (Power On Reset) circuit, but in order to achieve operation at a low power supply, V operate at approximately 1 ...
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... A0 address data during a read cycle. When the address data the becomes a direct current source for the DO pin. BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV The resistor R is the only resistance which limits this current. Therefore, a resistor with a value which satis- fies the -COM and the BR93LC56 / current capacity is required. When using a single control line, when a dummy bit “ ...
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... Memory ICs • External dimension (Units: mm) BR93LC56 9.3 0 7.62 2.54 0.5 0 DIP8 BR93LC56FV 3.0 0 0.65 0.22 0.1 0.3Min. (0.52) SSOP-B8 12 BR93LC56 / BR93LC56F / BR93LC56RF / BR93LC56FV BR93LC56F / RF 1.27 0.1 5.0 0 0.4 0.1 0.3Min. 0.15 SOP8 ...