Electronic Components Datasheet Search |
|
M48Z2M1YPL Datasheet(PDF) 8 Page - STMicroelectronics |
|
M48Z2M1YPL Datasheet(HTML) 8 Page - STMicroelectronics |
8 / 12 page Symbol Parameter M48Z2M1 / M48Z2M1Y Unit -70 Min Max tAVAV Write Cycle Time 70 ns tAVWL Address Valid to Write Enable Low 0 ns tAVEL Address Valid to Chip Enable Low 0 ns tWLWH Write Enable Pulse Width 55 ns tELEH Chip Enable Low to Chip Enable High 55 ns tWHAX Write Enable High to Address Transition 5 ns tEHAX Chip Enable High to Address Transition 15 ns tDVWH Input Valid to Write Enable High 30 ns tDVEH Input Valid to Chip Enable High 30 ns tWHDX Write Enable High to Input Transition 0 ns tEHDX Chip Enable High to Input Transition 10 ns tWLQZ (1,2) Write Enable Low to Output Hi-Z 25 ns tAVWH Address Valid to Write Enable High 65 ns tAVEH Address Valid to Chip Enable High 65 ns tWHQX (1,2) Write Enable High to Output Transition 5 ns Notes: 1. CL = 5pF (see Figure 4). 2. If E goes low simultaneously with W going low, the outputs remain in the high-impedance state. Table 10. Write Mode AC Characteristics (TA = 0 to 70 °C; VCC = 4.75V to 5.5V or 4.5V to 5.5V) POWER SUPPLY DECOUPLING and UNDER- SHOOT PROTECTION ICC transients, including those produced by output switching, can produce voltage fluctuations, result- ing in spikes on the VCC bus. These transients can be reduced if capacitors are used to store energy, which stabilizes the VCC bus. The energy stored in the bypass capacitors will be released as low going spikes are generated or energy will be absorbed when overshoots occur. A bypass capacitor value of 0.1 µF (as shown in Figure 8) is recommended in order to provide the needed filtering. In addition to transients that are caused by normal SRAM operation, power cycling can generate negative voltage spikes on VCC that drive it to values below VSS by as much as one Volt. These negative spikes can cause data corruption in the SRAM while in battery backup mode. To protect from these voltage spikes, it is recommeded to connect a schottky diode from VCC to VSS (cathode connected to VCC, anode to VSS). Schottky diode 1N5817 is recommended for through hole and MBRS120T3 is recommended for surface mount. AI02169 VCC 0.1 µF DEVICE VCC VSS Figure 8. Supply Voltage Protection 8/12 M48Z2M1, M48Z2M1Y |
Similar Part No. - M48Z2M1YPL |
|
Similar Description - M48Z2M1YPL |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |