器件名称: W27L02P-70
功能描述: 256K X 8 ELECTRIC ALLY ERASABLE EPROM
文件大小: 355.2KB 共15页
简 介:W27L02 256K × 8 ELECTRICALLY ERASABLE EPROM
1. GENERAL DESCRIPTION
The W27L02 is a high speed, low power consumption Electrically Erasable and Programmable Read Only Memory organized as 262,144 x 8 bits. It requires only one supply in the range of 3.3V ±10% in normal read mode. The W27L02 provides an electrical chip erase function.
2. FEATURES
Wide range for power supply voltage: 3.3V ±10% High speed access time: 70/90 nS (max.) Read operating current: 15 mA (max.) Erase/Programming operating current: 30 mA (max.) Standby current: 20 A (max.)
+12V erase/programming voltage Fully static operation All inputs and outputs directly TTL/CMOS compatible Three-state outputs Available packages: 32-lead PLCC and 32-lead STSOP
3. PIN CONFIGURATIONS
4. BLOCK DIAGRAM
VDD Vss VPP #PGM #CE
CONTROL
A A A 1 1 1 2 5 6 4 5 6 7 8 9 10 11 12 1 13 4 3 2
# V V P A p D G 1 p D M 7 1 3 2 3 1 3 0 29 28 27 26 25 24 23 2 22 0 21
#OE
OUTPUT BUFFER
Q0 . . Q7
A7 A6 A5 A4 A3 A2 A1 A0 Q0
32-lead PLCC
1 5
1 6
1 1 7 8
1 9
A14 A13 A8 A9 A11 #OE A10 #CE Q7
A0 . . A17
DECODER
CORE ARRAY
Q Q V Q Q Q Q 1 2 s 3 4 5 6 s
5. PIN DESCRIPTION
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
A11 A9 A8 A13 A14 A17 #PGM V DD V PP A16 A15 A12 A7 A6 A5 A4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
32-lead STSOP
#OE A10 #CE Q7 Q6 Q5 Q4 Q3 V SS Q2 Q1 Q0 A0 A1 A2 A3
SYMBOL A1 A17 Q0 Q7 #CE #OE #PGM VPP VDD Vss NC
DESCRIPTION Address Inputs Data Inputs/Outputs Chip Enable Output Enable Program……
