LH540215 Ver la hoja de datos (PDF) - Sharp Electronics
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LH540215 Datasheet PDF : 48 Pages
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LH540215/25
64-PIN TQFP
512 x 18/1024 x 18 Synchronous FIFO
TOP VIEW
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
D15
1
48
Q14
D14
2
47
Q13
D13
3
46
VSS
D12
4
45
Q12
D11
5
44
Q11
D10
6
43
VCC
D9
7
42
Q10
D8
8
41
Q9
D7
9
40
VSS
D6
10
39
Q8
D5
11
38
Q7
D4
12
37
Q6
D3
13
36
Q5
D2
14
35
VSS
D1
15
34
Q4
D0
16
33
EMODE *
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
BOLD ITALIC = Enhanced Operating Mode.
* This pin is VCC on IDT pinout; if EMODE pin is simply
biased to VCC, part will behave identical to IDT functionality.
Figure 3. Pin Connections for 64-Pin TQFP Package
540215-34
SUMMARY OF SIGNALS/PINS
PIN
D0 – D17
RS
EMODE
WCLK
WEN
RCLK
REN
OE
LD
FL/RT
RXI/REN2
NAME
Data Inputs
Reset
Enhanced Operating Mode
Write Clock
Write Enable
Read Clock
Read Enable
Output Enable
Load
First Load/Retransmit
Read Expansion Input/Read Enable 2
BOLD ITALIC = Enhanced Operating Mode
4
PIN
WXI/WEN2
FF
PAF
WXO/HF
PAE
EF
RXO/EF2
Q0 – Q17
VCC
VSS
NAME
Write Expansion Input/Write Enable 2
Full Flag
Programmable Almost-Full Flag
Write Expansion Output/Half-Full Flag
Programmable Almost-Empty Flag
Empty Flag
Read Expansion Output/Empty Flag 2
Data Outputs
Power
Ground
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