전자부품 데이터시트 검색엔진 |
|
SST30VR023-500-C-WH 데이터시트(PDF) 9 Page - Silicon Storage Technology, Inc |
|
SST30VR023-500-C-WH 데이터시트(HTML) 9 Page - Silicon Storage Technology, Inc |
9 / 12 page Data Sheet 2 Mbit ROM + 1 Mbit / 2Mbit / 256 Kbit SRAM ROM/RAM Combo SST30VR021 / SST30VR022 / SST30VR023 9 ©2001 Silicon Storage Technology, Inc. S71135-02-000 4/01 380 FIGURE 8: SRAM WRITE CYCLE TIMING DIAGRAM TABLE 8: FUNCTIONAL DESCRIPTION/TRUTH TABLE Address Inputs ROMCS#1 1. If is forbidden for ROMCS# pin and RAMCS# pin to be “0” at the same time RAMCS#1 WE# OE# DQ0-DQ7 XH H X2 2. X means Don’t Care. X2 Z Standby A17-A0 LH X2 H Z Output Floating A17-A0 LH X2 L Dout ROM Read Only AMS3-A0 are valid4 3. AMS = A16 for SST30VR021, A17 for SST30VR022, and A14 for SST30VR023 4. For SST30VR021: A17 must be fixed to “L” or “H” For SST30VR023: A15, A16, and A17 must be fixed to “L” or “H” H L H H Z Output Floating Only AMS3-A0 are valid4 H L H L Dout RAM Read Only AMS3-A0 are valid4 HL L H Din RAM Write T8.4 380 Notes: 1. A write occurs during the overlap (TWP) of a low RAMCS# and low WE#. A write begins at the latest transition among RAMCS# going low and WE# going low: A write end at the earliest transition among RAMCS# going high and WE# going high, TWP is measured from the beginning of write to the end of write. 2. TCW is measured from the later of RAMCS# going low to the end of write. 3. TAS is measured from the address valid to the beginning of write. 4. TWR is measured from the end of write to the address change. 5. If RAMCS#, WE# are in the read mode during this period, the I/O pins are in the outputs Low-Z state. Inputs of opposite phase of the output must not be applied because bus contention can occur. 6. If RAMCS# goes low simultaneously with WE# going low or after WE# going low, the outputs remain high impedance state. 7. DOUT is the same phase of the latest written data in this write cycle. 8. DOUT is the read data of new address 9. ROMCS# = VIH TWC TAW TCW(2) TOH TDH TDW TOW TWR(4) Data Valid 380 ILL F07.0 Data In Data Out WE# High-Z High-Z (6) (7) (8) Address RAMCS# TWP(1) TAS(3) TWHZ(5) |
유사한 부품 번호 - SST30VR023-500-C-WH |
|
유사한 설명 - SST30VR023-500-C-WH |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 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 |