OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

CY7B923-SC

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
CY7B92
3
CY7B93
3
Document #: 38-02017 Rev. *C Page 22 of 30
Valid Special Character Codes and Sequences (SC/D = HIGH)
[1, 2]
S.C. Byte Name S.C. Code Name
Bits Current RD− Current RD+
HGF EDCBA abcdei fghj abcdei fghj
K28.0 C0.0 (C00) 000 00000 001111 0100 110000 1011
K28.1 C1.0 (C01) 000 00001 001111 1001 110000 0110
K28.2 C2.0 (C02) 000 00010 001111 0101 110000 1010
K28.3 C3.0 (C03) 000 00011 001111 0011 110000 1100
K28.4 C4.0 (C04) 000 00100 001111 0010 110000 1101
K28.5 C5.0 (C05) 000 00101 001111 1010 110000 0101
K28.6 C6.0 (C06) 000 00110 001111 0110 110000 1001
K28.7 C7.0 (C07) 000 00111 001111 1000 110000 0111
K23.7 C8.0 (C08) 000 01000 111010 1000 000101 0111
K27.7 C9.0 (C09) 000 01001 110110 1000 001001 0111
K29.7 C10.0 (C0A) 000 01010 101110 1000 010001 0111
K30.7 C11.0 (C0B) 000 01011 011110 1000 100001 0111
Idle C0.1 (C20) 001 00000 −K28.5+,D21.4,D21.5,D21.5,repeat
[3]
R_RDY C1.1 (C21) 001 00001 −K28.5+,D21.4,D10.2,D10.2,repeat
[4]
EOFxx C2.1 (C22) 001 00010 −K28.5,Dn.xxx0
[5]
+K28.5,Dn.xxx1
[5]
Follows K28.1 for ESCON Connect−SOF (Rx indication only)
C−SOF C7.1 (C27) 001 00111 001111 1000 110000 0111
Follows K28.5 for ESCON Passive−SOF (Rx indication only)
P−SOF C7.2 (C47) 010 00111 001111 1000 110000 0111
Code Rule Violation and SVS Tx Pattern
Exception C0.7 (CE0) 111 00000 100111 1000
[6]
011000 0111
[6]
−K28.5 C1.7 (CE1) 111 00001 001111 1010
[29]
001111 1010
[29]
+K28.5 C2.7 (CE2) 111 00010 110000 0101
[30]
110000 0101
[30]
Running Disparity Violation Pattern
Exception C4.7 (CE4) 111 00100 110111 0101
[31]
001000 1010
[31]
Notes:
1. All codes not shown are reserved.
2. Notation for Special Character Byte Name is consistent with Fibre Channel and ESCON naming conventions. Special Character Code Name is intended to
describe binary information present on I/O pins. Common usage for the name can either be in the form used for describing Data patterns (i.e., C0.0 through
C31.7), or in hex notation (i.e., Cnn where nn = the specified value between 00 and FF).
3. C0.1 = Transmit Negative K28.5 (−K28.5+) disregarding Current RD when input is held for only one byte time. If held longer, transmitter begins sending the
repeating transmit sequence −K28.5+, D21.4, D21.5, D21.5, (repeat all four bytes)... defined in X3.230 as the primitive signal “Idle word.” This Special Character
input must be held for four (4) byte times or multiples of four bytes or it will be truncated by the new data. The receiver will never output this Special Character,
since K28.5 is decoded as C5.0, C1.7, or C2.7, and the subsequent bytes are decoded as data.
4. C1.1 = Transmit Negative K28.5 (−K28.5+) disregarding Current RD when input is held for only one byte time. If held longer, transmitter begins sending the
repeating transmit sequence −K28.5+, D21.4, D10.2, D10.2,(repeat all four bytes)... defined in X3.230 as the primitive signal “Receiver_Ready (R_RDY).” This
Special Character input must be held for four (4) byte times or multiples of four bytes or it will be truncated by the new data.
The receiver will never output this Special Character, since K28.5 is decoded as C5.0, C1.7, or C2.7 and the subsequent bytes are decoded as data.
5. C2.1 = Transmit either −K28.5+ or +K28.5− as determined by Current RD and modify the Transmission Character that follows, by setting its least significant
bit to 1 or 0. If Current RD at the start of the following character is plus (+) the LSB is set to 0, and if Current RD is minus (−) the LSB becomes 1. This modification
allows construction of X3.230 “EOF” frame delimiters wherein the second data byte is determined by the Current RD.
For example, to send “EOFdt” the controller could issue the sequence C2.1−D21.4− D21.4−D21.4, and the HOTLink Transmitter will send either
K28.5−D21.4−D21.4−D21.4 or K28.5−D21.5− D21.4−D21.4 based on Current RD. Likewise to send “EOFdti” the controller could issue the sequence
C2.1−D10.4−D21.4−D21.4, and the HOTLink Transmitter will send either K28.5−D10.4−D21.4− D21.4 or K28.5−D10.5−D21.4− D21.4 based on Current RD.
The receiver will never output this Special Character, since K28.5 is decoded as C5.0, C1.7, or C2.7, and the subsequent bytes are decoded as data.
6. C0.7 = Transmit a deliberate code rule violation. The code chosen for this function follows the normal Running Disparity rules. Transmission of this Special
Character has the same effect as asserting SVS = HIGH.
The receiver will only output this Special Character if the Transmission Character being decoded is not found in the tables.
CY7B92
3
CY7B93
3
Document #: 38-02017 Rev. *C Page 23 of 30
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature ..................................–65°C to +150°C
Ambient Temperature with
Power Applied.............................................–55°C to +125°C
Supply Voltage to Ground Potential...............–0.5V to +7.0V
DC Input Voltage............................................–0.5V to +7.0V
Output Current into TTL Outputs (LOW)......................30 mA
Output Current into PECL Outputs (HIGH)................–50 mA
Static Discharge Voltage...........................................> 4001V
(per MIL-STD-883, Method 3015)
Latch-up Current.....................................................> 200 mA
Operating Range
Range
Ambient
Temperature V
CC
Commercial 0°C to +70°C 5V ± 10%
Industrial –40°C to +85°C 5V ± 10%
CY7B923/CY7B933 Electrical Characteristics Over the Operating Range
[7]
Parameter Description Test Conditions Min. Max. Unit
TTL OUTs, CY7B923: RP; CY7B933: Q
0−7
, SC/D, RVS, RDY, CKR, SO
V
OHT
Output HIGH Voltage I
OH
= - 2 mA 2.4 V
V
OLT
Output LOW Voltage I
OL
= 4 mA 0.45 V
I
OST
Output Short Circuit Current V
OUT
= 0V
[8]
–15 –90 mA
TTL INs, CY7B923: D
0−7
, SC/D, SVS, ENA, ENN, CKW, FOTO, BISTEN; CY7B933: RF, REFCLK, BISTEN
V
IHT
Input HIGH Voltage Com’l, Ind’l, and Mil 2.0 V
CC
V
Ind’l and Mil (CKW and
FOTO, only)
2.2 V
CC
V
V
ILT
Input LOW Voltage –0.5 0.8 V
I
IHT
Input HIGH Current V
IN
= V
CC
–10 +10 µA
I
ILT
Input LOW Current V
IN
= 0.0V –500 µA
Transmitter PECL-Compatible Output Pins: OUTA+, OUTA−, OUTB+, OUTB−, OUTC+, OUTC−
V
OHE
Output HIGH Voltage
(V
CC
referenced)
Load = 50Ω to
V
CC
– 2V
Com’l V
CC
– 1.03 V
CC
– 0.83 V
Ind’l and Mil V
CC
– 1.05 V
CC
– 0.83 V
V
OLE
Output LOW Voltage
(V
CC
referenced)
Load = 50Ω to
V
CC
– 2V
Com’l V
CC
– 1.86 V
CC
– 1.62 V
Ind’l and Mil V
CC
– 1.96 V
CC
– 1.62 V
V
ODIF
Output Differential Voltage
|(OUT+) − (OUT−)|
Load = 50Ω to V
CC
– 2V 0.6 V
Receiver PECL-Compatible Input Pins: A/B, SI, INB
V
IHE
Input HIGH Voltage Com’l V
CC
– 1.165 V
CC
V
Ind’l and Mil V
CC
– 1.14 V
CC
V
V
ILE
Input LOW Voltage Com’l 2.0 V
CC
– 1.475 V
Ind’l and Mil 2.0 V
CC
– 1.50 V
I
IHE
[9]
Input HIGH Current V
IN
= V
IHE
Max. +500 µA
I
ILE
[9]
Input LOW Current V
IN
= V
ILE
Min. +0.5 µA
Differential Line Receiver Input Pins: INA+, INA−, INB+, INB−
V
DIFF
Input Differential Voltage
|(IN+) – (IN−)|
50 mV
V
IHH
Highest Input HIGH Voltage V
CC
V
V
ILL
Lowest Input LOW Voltage 2.0 V
I
IHH
Input HIGH Current V
IN
= V
IHH
Max. 750 µA
I
ILL
[10]
Input LOW Current V
IN
= V
ILL
Min. –200 µA
Notes:
7. See the last page of this specification for Group A subgroup testing information.
8. Tested one output at a time, output shorted for less than one second, less than 10% duty cycle.
9. Applies to A/B
only.
10. Input currents are always positive at all voltages above V
CC
/2.
CY7B92
3
CY7B93
3
Document #: 38-02017 Rev. *C Page 24 of 30
Miscellaneous Typ. Max.
I
CCT
[11]
Transmitter Power Supply
Current
Freq.
= Max. Com’l 65 85 mA
Ind’l and Mil 75 95 mA
I
CCR
[12]
Receiver Power Supply
Current
Freq.
= Max. Com’l 120 155 mA
Ind’l and Mil 135 160 mA
Capacitance
[13]
Parameter Description Test Conditions Max. Unit
C
IN
Input Capacitance T
A
= 25°C, f
0
= 1 MHz, V
CC
= 5.0V 10 pF
AC Test Loads and Waveforms
Notes:
11. Maximum I
CCT
is measured with V
CC
= Max., one PECL output pair loaded with 50 ohms to V
CC
− 2.0V, and other PECL outputs tied to V
CC
. Typical I
CCT
is measured with V
CC
= 5.0V, T
A
= 25°C, one output pair loaded with 50 ohms to V
CC
− 2.0V, others tied to V
CC
, BISTEN = LOW. I
CCT
includes current into V
CCQ
(pin 9 and pin 22) only. Current into
V
CCN
is determined by PECL load currents, typically 30 mA with 50 ohms to V
CC
− 2.0V. Each additional enabled PECL pair adds 5 mA to I
CCT
and an additional load current to
V
CCN
as described. When calculating the contribution of PECL load currents to chip power dissipation, the output load current should be multiplied by 1V instead of V
CC
.
12. Maximum I
CCR
is measured with V
CC
= Max., RF = LOW, and outputs unloaded. Typical I
CCR
is measured with V
CC
= 5.0V, T
A
= 25°C, RF = LOW, BISTEN = LOW, and outputs
unloaded. I
CCR
includes current into V
CCQ
(pins 21 and 24). Current into V
CCN
(pin 9) is determined by the total TTL output buffer quiescent current plus the sum of all the load
currents for each output pin. The total buffer quiescent current is 10mA max., and max. TTL load current for each output pin can be calculated as follows: Where R
L
= equivalent
load resistance, C
L
= capacitive load, and F
pin
= frequency in MHz of data on pin. A derating factor of 1.1 has been included to account for worst process corner
and temperature condition.
13. Tested initially and after any design or process changes that may affect these parameters, but not 100% tested.
14. Cypress uses constant current (ATE) load configurations and forcing functions. This figure is for reference only.
CY7B923/CY7B933 Electrical Characteristics Over the Operating Range
[7]
(continued)
Parameter Description Test Conditions Min. Max. Unit
2.0V
1.0V
3.0V
GND
2.0V
1.0V
5V
OUTPUT
(a) TTL AC Test Load (b) PECL AC Test Load
<1ns <1ns
80%
20%
80%
20%
<1ns <1ns
(c) TTL Input Test Waveform (d) PECL Input Test Waveform
R1
R2
C
L
C
L
R
L
R 1= 910Ω
R 2= 510Ω
C
L
<30pF
(Includes fixture and
probe capacitance)
R
L
= 50 Ω
C
L
<5pF
(Includes fixture and
probe capacitance)
V
IHE
3.0V
V
CC
− 2
V
IHE
V
ILE
V
ILE
[14][14]
I
I CCN
TTLPin
=
[
0.95 + (V
CCN
-5) * 0.3
R
L
+ C
L
* [
V
CCN
2
+1.5
] * F
pin
]
*1.1
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

CY7B923-SC

Mfr. #:
Buy CY7B923-SC
Manufacturer:
Cypress Semiconductor
Description:
IC TXRX FIBRE CHAN 28SOIC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet