CY7C277 查看數據表（PDF） - Cypress Semiconductor
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CY7C277 Datasheet PDF : 13 Pages
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CY7C277
Programming Information
Programming support is available from Cypress as well as
from a number of third-party software vendors. For detailed
programming information, including a listing of software pack-
ages, please see the PROM Programming Information located
at the end of this section. Programming algorithms can be ob-
tained from any Cypress representative.
Table 1. Mode Selection
Read or Output Disable
Mode
Other
Read
Output Disable
Program
Program Verify
Program Inhibit
Blank Check
Note:
10. X = “don’t care” but not to exceed VCC ±5%.
A14–A0
A14–A0
A14–A0
A14–A0
A14–A0
A14–A0
A14–A0
A14–A0
E, ES
VFY
VIL
VIH
VIHP
VILP
VIHP
VILP
Pin Function[10]
CP
PGM
VIH
X
VILP
VIHP/VILP
VIHP
VIHP/VILP
ALE
VPP
VIL
X
VPP
VPP
VPP
VPP
O7–O0
D7–D0
O7–O0
High Z
D7–D0
O7–O0
High Z
O7–O0
DIP
Top View
A9 1
A8 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
D0 11
D1 12
D2 13
GND 14
28 VCC
27 A10
26 A11
25 A12
24 A13
23 A14
22 VPP
21 PGM
20 VFY
19 D7
18 D6
17 D5
16 D4
15 D3
LCC/PLCC (Opaque Only)
Top View
4 3 2 1 32 31 30
A6 5
A5
A4
A3
A2
A1
A0
6
7
8
9
10
11
29 A12
28 A13
27 A14
26 NC
25 VPP
24 PGM
23 VFY
NC 12
22 D7
D0 13
21 D6
14151617 181920
Figure 1. Programming Pinouts
Document #: 38-04006 Rev. **
Page 5 of 13
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