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UPD4482323GF-A44 Datasheet(PDF) 10 Page - NEC |
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UPD4482323GF-A44 Datasheet(HTML) 10 Page - NEC |
10 / 28 page 10 Data Sheet M14904EJ3V0DS µPD4482163, 4482183, 4482323, 4482363 Partial Truth Table for Write Enables [ µµµµPD4482163, µµµµPD4482183] Operation /GW /BWE /BW1 /BW2 Read Cycle H H ×× Read Cycle H L H H Write Cycle / Byte 1 (I/O [1:8], I/OP1) H L L H Write Cycle / Byte 2 (I/O [9:16], I/OP2) H L H L Write Cycle / All Bytes H L L L Write Cycle / All Bytes L ×× × Remark × : don’t care [ µµµµPD4482323, µµµµPD4482363] Operation /GW /BWE /BW1 /BW2 /BW3 /BW4 Read Cycle H H ×× × × Read Cycle H L H H H H Write Cycle / Byte 1 (I/O [1:8], I/OP1) H L L H H H Write Cycle / Byte 2 (I/O [9:16], I/OP2) H L H L H H Write Cycle / Byte 3 (I/O [17:24], I/OP3) H L H H L H Write Cycle / Byte 4 (I/O [25:32], I/OP4) H L H H H L Write Cycle / All Bytes H L L L L L Write Cycle / All Bytes L ×× ×× × Remark × : don’t care Pass-Through Truth Table Previous Cycle Present Cycle Next Cycle Operation Add /WRITE I/O Operation Add /CEs /WRITE /G I/O Operation Write Cycle Ak L Dn(Ak) Read Cycle Am L H L Q1(Ak) Read Q1(Am) (Begin Burst) Deselected - H ×× High-Z No Carry Over from Previous Cycle Remarks 1. × : don’t care 2. /WRITE = L means any one or more byte write enables (/BW1, /BW2, /BW3 or /BW4) and /BWE are LOW or /GW is LOW. /WRITE = H means the following two cases. (1) /BWE and /GW are HIGH. (2) /BW1, /BW2 and /GW are HIGH, and /BWE is LOW. [ µPD4482163, µPD4482183] /BW1 to /BW4 and /GW are HIGH, and /BWE is LOW. [ µPD4482323, µPD4482363] /CEs = L means /CE is LOW, /CE2 is LOW and CE2 is HIGH. /CEs = H means /CE is HIGH or /CE2 is HIGH or CE2 is LOW. ZZ (Sleep) Truth Table ZZ Chip Status ≤ 0.2 V Active Open Active ≥ VDD − 0.2 V Sleep |
Similar Part No. - UPD4482323GF-A44 |
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Similar Description - UPD4482323GF-A44 |
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