STMicroelectronics

The M74HC259 is a high-speed CMOS 8-bit addressable latch manufactured with silicon gate C2MOS technology. The M74HC259 has single data input (D) 8 latch outputs (Q0-Q7), 3 address inputs (A, B, and C), common enable input (E), and a commonCLEARinput. To operate this device as an addressable latch, data is held on the D input, and the address of the latch into which the data is to be entered is held on the A, B, and C inputs. WhenENABLEis taken low, the data flows through to the address outputs. The data is stored on the positive-going edge of theENABLEpulse. All unaddressed latches will remain unaffected. WithENABLEin the high state, the device is deselected and all latches remain in their previous state, unaffected by changes on the data or address inputs. To eliminate the possibility of entering erroneous data into the latches, theENABLEshould be held high (inactive) while the address lines are changing. IfENABLEis held high and is taken low, all eight latches are cleared to the low state. IfENABLEis low, all latches except the addressed latch will be cleared. The addressed latch will instead follow the D input, effectively implementing a 3-to-8 line decoder. All inputs are equipped with protection circuits to guard against static discharge and transient excess voltage.

The M74HC365 is an advanced high-speed CMOS hex bus buffer (3-state) fabricated with silicon gate C2MOS technology. All six buffers are controlled by the combination of two enable inputs (G1andG2). All outputs of these buffers are enabled only when bothG1andG2inputs are held low. Under all other conditions these outputs are disabled in a high-impedance state. The M74HC365 has non-inverting outputs. All inputs are equipped with protection circuits against static discharge and transient excess voltage.

The M74HC4094 device is a high speed CMOS 8-bit SIPO shift latch register fabricated with silicon gate C2MOS technology. It consists of an 8-bit shift register and an 8-bit latch with 3-state output buffer. Data is shifted serially through the shift register on the positive going transition of the clock input signal. The output of the last stage (QS) can be used to cascade several devices. Data on the QS output is transferred to a second output (QS’) on the following negative transition of the clock input signal. The data of each stage of the shift register is provided with a latch, which latches data on the negative going transition of the STROBE input signal. When the STROBE input is held high, data propagates through the latch to a 3-state output buffer. This buffer is enabled when OUTPUT ENABLE input is taken high. All inputs are equipped with protection circuits against static discharge and transient excess voltage.

The M74HC4851 device is a single 8-channel analog multiplexer/demultiplexer manufactured with silicon gate C2MOS technology. It features injection current effect control which makes the device particularly suited for use in automotive applications where voltages in excess of normal logic voltages are common. The injection current effect control allows signals at disabled input channels to exceed the supply voltage range or go down to ground without affecting the signal of the enabled analog channel. This eliminates the need for external diode-resistor networks typically used to keep the analog channel signals within the supply voltage range.

The M74HC4852 device is a dual four-channel analog multiplexer/demultiplexer manufactured with silicon gate C2MOS technology. It features injection current effect control which makes the device particularly suited for use in automotive applications where voltages in excess of normal logic voltage are common. The injection current effect control allows signals at disabled input channels to exceed the supply voltage range or go down to ground without affecting the signal of the enabled analog channel. This eliminates the need for external diode-resistor networks typically used to keep the analog channel signals within the supply voltage range.

The M93C46 (1 Kbit), M93C56 (2 Kbit), M93C66 (4 Kbit), M93C76 (8 Kbit) and M93C86 (16 Kbit) are electrically erasable programmable memory (EEPROM) devices accessed through the MICROWIRE™ bus protocol. The memory array can be configured either in bytes (x8b) or in words (x16b). The M93Cx6-W devices operate within a voltage supply range from 2.5 V to 5.5 V and the M93Cx6-R devices operate within a voltage supply range from 1.8 V to 5.5 V. All these devices operate with a clock frequency of 2 MHz (or less), over an ambient temperature range of - 40 ° C / + 85 ° C.

The M93C46 (1 Kbit), M93C56 (2 Kbit), M93C66 (4 Kbit), M93C76 (8 Kbit) and M93C86 (16 Kbit) are electrically erasable programmable memory (EEPROM) devices accessed through the MICROWIRE™ bus protocol. The memory array can be configured either in bytes (x8b) or in words (x16b). The M93Cx6-W devices operate within a voltage supply range from 2.5 V to 5.5 V and the M93Cx6-R devices operate within a voltage supply range from 1.8 V to 5.5 V. All these devices operate with a clock frequency of 2 MHz (or less), over an ambient temperature range of - 40 ° C / + 85 ° C.