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Part: SY10E337JCTR
Category:
Timing Circuits
-> Clock Buffers
-> Receiver/Buffer/Driver
Description: 3-Bit Scannable Registered Bus Transceiver
Company: Micrel Semiconductor
Datasheet: Download SY10E337JCTR datasheet File size : 79 kB
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Datasheet text preview:
3-BIT SCANNABLE REGISTERED BUS TRANSCEIVER
FEATURES
s s s s s s s s s s s s s s 1500ps max. clock to bus (data transmit) 1000ps max. clock to Q (data receive) Extended 100E VEE range of 4.2V to 5.5V 25 cutoff bus outputs 50 receiver outputs Scannable implementation of E336 Synchronous and asynchronous bus enables Non-inverting data path Bus outputs feature internal edge slow-down capacitors Additional package ground pins Fully compatible with industry standard 10KH, 100K ECL levels Internal 75K input pulldown resistors Fully compatible with Motorola MC10E/100E337 Available in 28-pin PLCC package
SY10E337 SY100E337 FINAL
DESCRIPTION
The SY10/100E337 are 3-bit registered bus transceivers with scan designed for use in new, high- performance ECL systems. The bus outputs (BUS0BUS2) are designed to drive a 25 bus; the receive outputs (Q0Q2) are designed for 50. The bus outputs feature a normal logic HIGH level (VOH) and a cutoff LOW level of 2.0V and the output emitter-follower is "off", presenting a high impedance to the b u s . The bus outputs also feature edge slow-down capacitors. Both drive and receive sides feature the same logic, including a loopback path to hold data. The LOAD/HOLD function is controlled by Transmit Enable (TEN) and Receive E n a b l e (REN) on the transmit and receive sides, r e s p e c t i v e l y , with a HIGH selecting LOAD. The implementation of the E337 Receive Enable differs from that of the E336. A synchronous bus enable (SBUSEN) is provided for normal, non-scan operation. The asynchronous bus disable (ABUSDIS) disables the bus for scan mode. T h e SYNCEN input allows either synchronous or asynchronous re-enabling after disabling with ABUSDIS. An alternative use is asynchronous-only operation with ABUSDIS, in which case SYNCEN is tied LOW. SYNCEN is implemented as an overriding SET control to the enable flip-flop. Scan mode is selected by a logic HIGH at the SCAN input. Scan input data is shifted in through S-IN, and output data appears at the Q2 output. All registers are clocked on the rising edge of CLK. Additional lead-frame grounding is provided through the ground pins (GND) which should be connected to 0V. The GND pins are not electrically connected to the chip.
PIN CONFIGURATION
A0 ABUSDIS SBUSEN SYNCEN
VCCO
25 24 23 22 21 20 19
SCAN S-IN TEN VEE REN CLK A1
B0
Q0
26 27 28 1 2 3 4 5 6 7 8 9 10 11
18 17
GND BUS0 VCC Q1 VCCO BUS1 GND
TOP VIEW PLCC J28-1
16 15 14 13 12
PIN NAMES
Pin A0A2 B0B2 S-IN TEN, REN SCAN ABUSDIS SBUSEN SYNCEN CLK BUS0BUS2 Q0Q2 VCCO 1 Function Data Inputs A Data Inputs B Serial (Scan) Data Input LOAD/HOLD Controls Scan Control Asynchronous Bus Disable Synchronous Bus Enable Synchronous Enable Control Clock 25 Cutoff BUS Outputs Receive Data Outputs (Q2 serves as SCAN_OUT in scan mode) VCC to Output
Rev.: C Amendment: /2 Issue Date: February, 1998
BUS2
VCCO
GND Q2
B1
A2 B2
Micrel
SY10E337 SY100E337
BLOCK DIAGRAM
BUS2 D A2 B2 Q D Q Q2 SCAN-OUT
BUS1 D A1 B1 BUS0 D A0 B0 S-IN TEN REN SCAN ABUSDIS SBUSEN SYNCEN CLK D
SET
Q
D
Q
Q1
Q
D
Q
Q0
Q
2
Micrel
SY10E337 SY100E337
DC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND
TA = 0°C Symbol VCUT I IH I EE Parameter Cut-off Output Voltage Input HIGH Current All Other Inputs Power Supply Current 10E 100E -- -- 145 145 174 174 -- -- 145 125 174 174 -- -- 145 167 174 200 Min. 2.10 -- TA = +25°C TA = +85°C Min. Typ. -- -- Max. 2.03 150 Unit V µA mA Condition 1 -- -- Typ. Max. Min. Typ. Max. -- -- 2.03 2.10 150 -- -- --
2.03 2.10 150 --
NOTE: 1. Applies to BUS outputs only. Measured with VTT = 2.10V.
AC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND
TA = 0°C Symbol tPLH tPHL Parameter Propagation Delay to Output CLK to Q CLK to BUS ABUSDIS SYNCEN Set-up Time BUS SBUSEN Data, S-IN TEN, REN, SCAN Hold Time BUS SBUSEN Data, S-IN TEN, REN, SCAN Minimum Pulse Width Rise/Fall Time 20% to 80% (Qn) 20% to 80% (BUSn Rise) 20% to 80% (BUSn Fall) TA = +25°C TA = +85°C Min. Typ. 450 800 500 800 350 100 400 550 350 500 350 200 400 300 500 300 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max. 1000 1800 1500 1800 ps 350 100 400 550 350 500 350 200 400 300 500 300 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 800 1000 800 350 100 400 550 350 500 350 200 400 300 500 300 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 800 1000 800 -- -- -- -- ps -- -- -- -- -- 800 1000 800 ps ps -- -- -- -- Unit ps 450 800 500 800 -- -- -- -- 1000 1800 1500 1800 450 800 500 800 -- -- -- -- 1000 1800 1500 1800 Condition -- Min. Typ. Max. Min. Typ. Max.
tS
tH
t PW tr tf
PRODUCT ORDERING CODE
Ordering Code SY10E337JC SY10E337JCTR SY100E337JC SY100E337JCTR Package Type J28-1 J28-1 J28-1 J28-1 Operating Range Commercial Commercial Commercial Commercial
3
Others parts begin by sy
SY-1 SY-2 SY-3 SY-4 SY-5 SY-6 SY-7 SY-8 SY-9 SY-10 SY-11
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